One issue many people have with the iPhone App Store is the lack of trial versions that force you to pay for an application even if you are not sure it will do what you need or want it too. Many developers have created Lite versions that act as trial versions and are available for free. According to Android Central the Android Market's new paid applications can be purchased and used for 24 hours with a return policy if the application doesn't live up to expectations.
This seems like a good way to trial an application for 24 hours and I wonder if there are any limitations on how many you can return and how simple the process is. In addition to tis 24 hour return policy, you can also reinstall apps you paid for in case you do a reset or something.
I would also like to know if you can install apps on multiple Android devices? From what I understand you can install Apple apps on up to five devices in your household with a single purchase.