Maybe you can consider this phone...

http://biz.thestar.com.my/news/story...4&sec=business

A smart phone with dual touch screen for US$199

The phone, called the Echo, is made by Japanese manufacturer Kyocera Corp. and has screens that are each the size of an iPhone's display. Put together, they create a larger space for typing e-mails, playing games and watching videos. The resulting display is still about half the size of an iPad's. But it's still a larger surface area than those found on most phones.

Nokia should have done this for the N900...

Perhaps to preempt any complaints about its endurance, Sprint will include a spare battery in the box, along with a device that can recharge both the phone and the second battery at the same time.