We're a big user of MS Messenger with the family so are looking for an iPad version. There is a Mac version and I did find a Messenger on the app store but it only seems to interact with one person at a time.
Anybody run across anything?
I haven't used it, but IM+ looks like it would do a pretty good job; allows you to chat with all types of IM contacts (Yahoo, AOL, MSN, etc) at once. It's a bit steep at $9.99 though...