Vertigo recently standardized the Samsung Blackjack. It is wonderful hardware. The smart phone has shrunk to a pocket sized form after all these years. Ironically, it's the software that needs to improve -- the Windows Mobile 5.0 leaves a lot to be desired. It's not very intuitive.
You'll probably want a few applications on your Samsung Blackjack phone. Remember -- this is Windows Mobile 5.0 we are talking about here, so be sure to pick the right version. We recommend starting with a freeware registry editor. There are a lot of great, useful settings that are only exposed through the registry of the phone. Try installing "regedit.Stngr_ARM.CAB" on your Samsung Blackjack – it should work fine for basic registry editing. Once of the first things you will want to do is turn off the "application lock” by editing the registry or by downloading a small registry edit file.
Battery life on the Samsung Blackjack is not that great. This is probably why it comes with an extra battery as well as a standalone battery charger out of the box. Keep in mind that the phone does trickle charge over USB when it is connected. However, you might not be able to get it to charge through USB. The external might be a smart upgrade if you start running into major battery problems. This has been a frequent complaint of Samsung Blackjack users.
The Samsung Blackjack phone actually has a lot in common with the Motorola Q. In fact, often files and tricks for the Q will also work on the Blackjack. You can download new start page designs that work fine from the world wide web.
And do not forget about the fact that the Samsung Blackjack accepts MicroSD cards for additional storage – they are quite small compared to their SD and MiniSD brothers.