Upgrading to a newer version of Messenger shouldn't be a big deal for most users, especially the latest Messenger version 6.0 isn't being shoved down their throats. However, October 15th is also the last day Messenger will be compatible with third party IM software like Trillian. C|Net reports:
Sundwall said the company is opening doors to discuss contractual agreements with third-party integrators, but he would not give definitive assurances that Trillian users will be able to access their MSN contacts after the deadline.Without knowing what kind of compensation, access, or control Microsoft is seeking from third party software developers, it's hard to handicap Trillian's options. The contents of the "contractual agreement" Microsoft seeks could be innocuous, but I suspect Microsoft has more up its sleeve.
"We certainly would urge third parties who want to continue (hosting the MSN software) to contact us before Oct. 15 when they will no longer be able to access the network," Sundwall said.