According to Seeking Alpha, Black Friday and the weekend following it was kind to Research in Motion. The BlackBerry Curve did particularly well at AT&T stores over the weekend as did Verizon’s new BlackBerry Pearl. Sprint, on the other hand, who just launched their version of the BlackBerry Pearl on Black Friday, didn’t do as well because of lack of devices in the store.

It was a great move for Sprint to launch the BlackBerry Pearl on Black Friday. Not having devices in the stores to capitalize on the foot traffic completely counteracted it. Its no wonder this company is losing customers hand over fist…