http://www.kitguru.net/components/anton ... es-source/
If they buy the struggling chipmaker, I can guarantee you ATI card support under Linux might flounder. It's difficult to say given Microsoft's recent slew of open sourcing, but I think viewing their activities with a healthy dose of suspicion is worthwhile.
This does suggest that MS wants to retain stricter control of their hardware for future mobile devices and would provide them with CPU and GPU combinations, plus all the other IP AMD owns. Intel hasn't had serious competition from AMD in the performance market for years, so this could be a positive development. I suspect Intel isn't going to be all that happy with Microsoft.