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Now you can store and run up to 2,160 iPhone apps on your home screen with iOS 4 folders. That's the maximum capacity with 180 folders holding 12 apps each. Although you may not come close to this limit folders are an excellent way to get organized and more efficiently use your iPhone.

Creating folders on the iPhone is simple and intuitive. Just drag one app on top of another app and a grey box will appear. iOS 4 will put both apps in the same folder and prompt you with a text box naming the folder. If you don't like the automatic name just type a new one in the box. Tapping the home screen will exit.

With the appropriately geeky tag line, "Take THAT BlackBerry!" the shopping website ThinkGeek has announced a flip-out physical keyboard accessory for the iPhone 4 and iPhone 3GS. The TK-421 iPhone case comes complete with a rotating hinge and its own built-in Bluetooth mini-keyboard.

The TK-421 is no iTwinge, but it does have a similarly odd name. The keyboard has its own USB-rechargeable battery and works with any application that already uses the on-screen keyboard. The product provides protection for the sides and back of the iPhone just like a case.

Millions and millions of wireless customers from Verizon and AT&T have said they're waiting to buy an iPhone until the device is available on America's largest carrier. Comments by Verizon Wireless CEO Ivan Seidenberg to investors at a Goldman Sachs conference give the impression that these people could be waiting a lot longer than they thought. Rumors have indicated the company will partner with Apple on the release of a CDMA iPhone as early as January 2011.

Instead, Seidenberg associated the iPhone with Verizon Wireless' upcoming Long Term Evolution (LTE) network, rolling out now and not scheduled to cover the entire US until December 2012. If you bought an iPhone now, that's only three months after your two-year AT&T contract would expire.

Some unlucky iPhone users got the short end of the battery life after updating to iOS 4.1. Users have reported battery life issues among other problems with prior firmware updates (remember iPhone OS 3.1?) but now some running iOS 4.1 are seeing their battery percentage drop to zero within hours.

Online discussion forums are hopping with activity from iPhone 4 and iPhone 3GS users complaining of shortened battery life and warm phones running iOS 4.1. Some reports have suggested that errant processes are running in the background constantly and draining the battery power. Bugs in the modem firmware, tethering software, and Game Center have all been cited as possible causes of the issue.

With all of the hoopla over the white iPhone 4 launch and a possible Verizon Wireless CDMA model it's easy to forget that carriers are frantically working to upgrade their cellular data networks. LTE stands for Long Term Evolution, and its the technology behind next generation 4G wireless networks. AT&T along with Verizon Wireless and T-Mobile have all committed to LTE standards.

AT&T, currently the exclusive carrier of the iPhone in the US, plans to begin rolling out its LTE network in mid-2011. Trials of LTE are currently underway in Dallas and Baltimore as the company continues to expand HPSA+ 3G availability across the nation. The implementation of LTE could coincide with Apple's iPhone 5 launch next year.