T-Mobile for me, BTW ...
Have now experienced a couple of reboots. This AM, was updating a couple of apps (HD Widgets, Ally Bank) over Wi-Fi and got a reboot then "Fuse Locator Failed [something like that]". Since I was on Wi-Fi at home I just ignored it and continued with my morning SS&S routine. Got to work and noticed the nothing-but-grey bars and no "H" phone signal display, went to Status and saw weird signal level and ASU values (very large unrealistic numbers), so I knew a power cycle was needed. Came back up on T-Mobile after power on, all bars and "H".
--
Alex