Here’s some good news for travelers.

In-flight Wi-Fi is not yet a commodity, but it is no longer a rarity. Most domestic airlines have been upgrading their fleets to offer the service more widely, to the point where nearly one-third of the roughly 2,800 aircraft in the nation’s passenger fleet are equipped with Wi-Fi, according to Aircell, the company that equips most of the Wi-Fi-enabled planes in the United States.

If you travel on planes a lot and plan to use Wi-Fi frequently, you can shave some expense from the process if you have a Wi-Fi-enabled mobile device like an iPhone or Droid, which incur lower charges than the fees charged by airlines if you use a smartphone or laptop without Wi-Fi. If you don’t have your own device, airlines are not yet providing one.

But no matter what device you use, the connection process is fast and usually pain free.

On the other hand, an airplane has been one of the few areas where you were forced to go without a connection for a period of time. Wi-Fi can certainly come in handy to kill time or deal with issues that can’t wait, but we’re learning that putting away your phone and laptop can be important for your long-term sanity. I guess we now at least have a choice.

Apple CEO Steve Jobs poses with the new iPhone 4 during the Apple Worldwide Developers Conference in San Francisco. The new features are quite impressive as Apple builds upon the momentum from the iPad.

Meanwhile, many app developers are worried as AT&T will no longer be offering unlimited data plans. I can see the concern, as users don’t want to worry about what they are consuming. The beauty of many apps is that they are free, or they are so cheap that the decision to purchase is insignificant. This may upset the balance, no matter how good the iPhone gets.

Is Apple going too far with some of its restrictive policies surrounding the approval of apps, or is Apple just having a hard time setting the rules for something that exploded in popularity? I guess we’ll find out in due time as Apple’s policies evolve, but in the meantime Apple is on the receiving end of some tough criticism.

An app store lets companies tap into ideas from third-party innovators while retaining firm control over their brands. And that’s both its charm and its flaw. “The way Apple runs the App Store has harmed its reputation with programmers more than anything else they’ve ever done,” wrote Paul Graham, cofounder of the venture firm Y Combinator, on his blog.

The central problem is Apple’s heavy-handed management: Nothing gets into Apple’s store without the company’s express approval. Its restrictions have pushed several high-profile developers to quit the iPhone, and have bred ill will with the programmers who’ve remained. Apple may feel it has room to misbehave. No other phone can offer developers anywhere near the number of customers to be found in the App Store, so what choice do they have?

That’s a miscalculation, because the App Store’s true rival isn’t a competing app marketplace. Rather, it’s the open, developer-friendly Web. When Apple rejected Google Latitude, the search company’s nearby-friend-mapping program, developers created a nearly identical version that works perfectly on the iPhone’s Web browser. Google looks to be doing something similar with Voice, another app that Apple barred from its store. Last fall, Joe Hewitt, the Facebook developer who created the social network’s iPhone app, quit developing for Apple in protest of the company’s policies. Where did he go? Back to writing mobile apps for Web browsers.

Apple’s app bonanza won’t end anytime soon, but you’d be a fool to ignore the long-term trend in software — away from incompatible platforms and restrictive programming regimes, and toward write-once, run-anywhere code that works on a variety of devices, without interference from middlemen. As different kinds of mobile devices hit the market, from phones to tablet PCs to smartpens to e-book readers and beyond, developers will find that trend harder to ignore. They’ll need to create programs that can work not just on iPhones but on everything. Fortunately, there’s an app for that: It’s called the Web.

Apple is riding an incredible wave of success with iPhone apps, and things will only get more hectic with the introduction of the iPad that goes on sale tomorrow. Apple needs to redouble its efforts to control this situation in a manner that is fair to all participants.

There seems to be a smart phone application for just about every purpose under the sun. If you’ve got a possible need, some tech guru is busy right now making sure that you’ll have a smart phone application that will meet that need. Need airline tickets? There is an app. Need a date for the company party? There is one for that, too. So, it was inevitable that we would have apps for financial needs, but selecting the best money management apps for your phone can pose some problems. There are simply too many to choose from.

Which finance-related app will work best for you will depend on what you’re trying to accomplish with it. There are apps for monitoring stock prices and some that even allow you to buy and sell via your mobile device. Other apps offer financial solutions ranging from long-term retirement planning to apps that help in obtaining fast and much needed cash loans for those unexpected emergencies. Finance related applications for smart phones are sometimes as easy to use as looking up an address, or they can be as complicated as a foreign encyclopedia. Shop and compare, and don’t be afraid to ask people questions about which ones provide them with a quality application.

To select the best smart phone applications for money matters, you should look for the name behind the app. Those that are developed by companies with solid reputations in their area of expertise are probably the smarter buy for your money. Still, they can be more costly, too. Since the smart phone, like the web, is an open market for entrepreneurs who have their own items to sell, check out any app purchases carefully. Look for a highly rated app with sound customer support. After all, you want your apps to help you with your financial situation, not ones that create problems for you financially.