So I got my 8830 last week and I have a MacBook. Pocket Mac is a free sync service (I couldn't get it to recognize my 8830 though) whereas Missing Sync from MarkSpace you have to pay for. Its a better service (sync's better, more updates, quick response from developer, music sync...). The only additional monthly payment for VZW is if you plan on using your BB as a modem for your computer. This is an extra $15 a month. If you dont plan on using it as a modem - you dont have to pay it. It works great, one of the best phones I have had. Shoot me an email if you need more help and I will do what I can!