I just ordered one to upgrade from my Optimus V.
Fatwallet.com offers another $5.00 back- just go to fatwallet.com and search deals for Virgin Mobile. $45.00 for the V was too good to pass up.
There seems to be 2 deals- but both are for the same amount--$5.00, the only difference being one allows for $5.00 x more than one phone.
FWIW, Amazon is now (7:20 PM Eastern) offering the V at $49.