I too have had symptoms.... sometimes the internet just stops working but the phone is still showing a connection to my 770.

I tried to load an internet radio station and the bar took 2 minutes to populate the buffer. Then, out of the blue on another try, it populated almost instantly and began playing. But on another try later, it paused for so long I thought I should disconnect my connection and restart it. This caused the device to lock up and then after 30 seconds, it rebooted hard.

It's worked fine for the most part, yes, something is buggy somewhere.