Quis89
Q&A Team
This is an excellent point I just read on the Android Market support forums,
If people can't test the apps properly, they'll just look for pirated versions, and nobody wants that.
App trial periods are all about testing conflicts with existing applications, compatibility with specific models and battery usage. Apple doesn't need this because they only support four devices at any given time.
Not to mention, I fear the upcoming flood of faulty apps specifically designed to cheat customers within 15 minutes. They don't even need to work properly beyond that period. iTunes prevents this because they have an obtuse approval method, but GOOGLE DOES NOT. That's why we love Android.
If developers are whining about people asking for refunds, what they need is to make better apps, not ask Google to protect them.
I'm sorry, but if you're going to do this silly thing, you need to balance it with another measure. Time limited trial versions that expire in 12 hours, compulsory demos for very paid app, something. All Google does here is discourage me from buying ANY app.