Are you sure you're dropping it by mistake or subconsciously you just want to throw your IPhone 4 into sea. kidding..

I'm an IPhone4 user too. Decided to switch to Galaxy Note because got some problem with my IPhone 4. Un-responsive home button, frequent drop call.. sometime got no signal bar and need to restart the phone. (unfortunately no longer under warranty). A very good reason for me to buy a new phone.

I feel there is nothing new with IPhone4s.. Don't really keen to talk to my phone in public (referring to SIRI features).
Anyway, each person have their own taste. Just read the review, play around with your friend android phone then decide which suit you best. If you're in doubt better wait for the launching and try to play with the device yourself.

I've tried playing around with my friend's Dell Streak and feel that the 5' screen size is actually OK and fit nicely into my pocket. (Not the kind of guy who wear really tight jeans though).