mine did the same thing today...went back to best buy and asked my brother what was up and he said probably Verizon taking forever because of so many activations today.
While I was in there getting my phone, 3 others got it, and thats not including the 5 my brother got earlier in the day and the 7-8 i saw at verizon store (would have been 2 more but the couple didnt want to pay a $400 deposit per line).
That doesnt include regular daily activity they do.
Hacked HTC Shadow (11-2008 to 04-2009)
Rooted HTC Dream (02-2009 to 01-2011)
Rooted HTC/Google Nexus One (01-2010 to 11-2010)
Rooted HTC (Droid Incredible) ADR6300 (04-2010 to 10-2011)
Rooted HTC Thunderbolt (07-2011 to CURRENT)
HTC G2 (02-2011 to 11-2011)
Asus Transformer (06-2011 to 09-2011)
Samsung Stratosphere (08-2011 to 09-2011)
Motorola Droid 3 (09-2011 to CURRENT)
Rooted HTC Vigor (01-2012 to CURRENT)