There are a number of good resources out there. The following outlines changes in InfoPath forms and how they correlate to editing lists now (very cool) http://technet.microsoft.com/en-us/library/ee704557.aspx.
there is also the new InfoPath Form WebPart - http://msdn.microsoft.com/en-us/library/ee558803(office.14).aspx
Finally, this document on "enhanced integration" and its implications (what does/doesn't work, depending on using form services or not, is pretty good - http://technet.microsoft.com/en-us/library/ff645393.aspx
Finaly, here is a pretty old blog post of "what was coming" in InfoPath 2010 - http://blogs.msdn.com/b/infopath/archive/2009/07/15/what-s-new-in-infopath-2010.aspx
Finally, check out all the rich goodies in the InfoPath Team Blog - http://blogs.msdn.com/b/infopath/