Microsoft now chats with Yahoo and AOL (but only for businesses)

The big guys like to keep their chat clients only for themselves. From a business stand point I can sort of understand this, as you want more people to use YOUR instant message tool. However, this arrogance makes it harder for customers and stifles more use of the tool.
Imagine if rail road tracks were all different sizes and types!
Reuters is reporting that Microsoft will open its online messaging service for the workplace to America Online and Yahoo’s systems, in a big step toward allowing users of different networks to communicate with each other, the companies say.
Microsoft, the world’s largest software maker, will open up its instant messaging software used by businesses, but consumers using its free MSN Messenger service will not get the same inter-operability, at least for now, said Taylor Collyer, a Microsoft marketing manager.