There have been hacks involving MSN Messenger to relay feeds, but a more mainstream offering -- perhaps a partnership with a feed aggregation service, would greatly enhance personalization.

ENGADGET: Switched On: The gist on your wrist

MessageVine's server supports interaction via its own PC client or those of AOL's ICQ or Microsoft's MSN Messenger, and also from mobile phones using WAP, SMS, or Japanese operator NTT DoCoMo's I-mode system.

CNN: AOL brings instant messenger to mobile phones