Originally Posted by endodoc
Once thing I heard you can do is send IM's to peoples phones who do not have IM. like from there using Yahoo IM sending to joe smith 212-555-1212. Not sure if this is true. Anyone have a clue?
If you send from Yahoo to a user's phone, its going via SMS and you will be charged for a normal SMS message. I just saw an actualy Yahoo branded client on the blackberry(dot)com website free for download as well. There are many clients out there. I know someone in Isreal right now that I communicate with via IM on his Blackberry. VERY efficient and quick.