Does this mean Linspire and Freespire will start looking and behaving like the Ubuntu distribution?
No…not any more than Linspire/Freespire looks like a pure Debian distribution now. Linspire will continue doing all the unique things that are important to its target users (ease of use, CNR, proprietary drivers and codecs, OEM program, etc.). This change is more at the underlying, core level rather than the UI. By working together with the Ubuntu community, we can better focus our collective resources on the common issues of hardware support, networking, installing, applications, etc.