I have had mine a little over 3 weeks. I have had about 30 uncommanded reboots. Last night I was relaxing on the porch surfing with it, and had 6 reboots alone. It was annoying enough to finally shut it down for the night.
I have it connected to the keyboard. I bought it at best buy. I have done the hard reset, but not the reset that wipes everything. I am thinking that I will just wait til the TF700 comes out and upgrade to that.