i have had nothing but signal problems since i got the phone - sending an mms is almost impossible, 'delivery reports' are completely useless for both mms and sms, and the insane lag on the standard keyboard is ludicrous. also, transferring video files from my laptop to the phone fails about 2/3 of the time - says something like "device may have been removed" and all i can do is unplug the usb and plug it back in and try again, hoping for the best. and on two separate occasions, the messaging icon has just disappeared and i had to use desktop visualizer to re-create it.
this is my first ever smartphone, so maybe i was setting the bar too high, but i am definitely not impressed yet