I just purchased the Jack this past Friday. I was formally a Blackjack 2 user. I had done my research. Ignoring everyone suggestion about getting an iphone (don't care for it) I chose to stay with WinMo. I have been using WinMo since the AT&T 8125.
Besides the Jack feeling sexy in the hands. Physically the Jack is a huge improvement from the Blackjack 2. I was worried about the keys being so close together. But the keys are raised so feeling out for them was no problem. I actually love its keyboard.
With its fast processor it blazes. Windows Media Player no longer does that long pause when going from track to track. I love the message ticker. Very helpful when wanting to read the message rather than going into messages like ... (continues)
I just got the new Jack on July 9. So far, I like it a lot. I was a Dash (unlocked) user on AT&T. The Jack seems quite similar to the Dash. Can you share the link to the hacks? Also, I was wondering if there is a way to turn off or disable the shutdown sound. Thanks! I hope you are still enjoying your Jack!