The BlackJack's 220 MHz Samsung processor runs, as expected, a little faster than the T-Mobile Dash's 200 MHz processor in video benchmarks. But unlike the 400 MHz Cingular 8525, the BlackJack has some trouble with multitasking. If you try to play music over Bluetooth in the background, other applications get quite slow, and you hear occasional pops, clicks and dropouts if you're trying to talk on a Bluetooth headset and surf the Web over Pocket Internet Explorer at the same time.
