Can I use a Motorola Atrix without a SIM card? My company purchased an Atrix for app development and would like to use it without a SIM card.  Unfortunately, on boot it is not possible to get past the "No SIM card. Emergency calls only" screen.  Is it possible to use the Motorola Atrix without a SIM card?

Edit: Is it also possible to skip or bypass the MotoBlur registration screen?
You can bypass the SIM card requirement by playing with the boot options:


Load Boot menu by holding the Volume Down button while starting the phone.
Press the Volume Down button until the option "Boot Android (NO BP)" appears at the top of the screen.
Press the Volume Up button to select this option.
On load, the phone will bypass the No SIM card screen


Next, you can either register for a MotoBlur account or skip it by entering the following keys into the virtual keyboard (press and hold the Menu key to bring up the keyboard):


?123
ALT
ABC
e
?123
ALT
ABC
e
b
l
u
r
o
f
f


Luckily, this process only needs to be performed once.  It looks like the phone remembers this boot option for next time :)  Thanks to XDA for the MotoBlur bypass steps!