I purchased Quick IM and tried it for a while on my Verizon 7250. I didn't like it. Then I got Berry Vine. It is very solid and has good customer support. It cost half the price of Quick IM. There are a couple of settings I had to switch on the initial setup but the tech support people talked me through it. I think it cost $15. You might want to use this until the official Blackberry version comes out for MSN.