I have been using the Iphone for a few months and I, maybe have come up with a few improvements.
For the apps developers, maybe it is a good idea to include a home screen button in their apps. That is, a button that takes the user back to the home screen instead of pressing a physical button.
Another improvement is to use a small solar panel to do the charging of the Iphone.
Let me know what you think?
19/3/2013
Hi
Just to add, one other improvement is to put a USB port on the side of the Iphone?