MSDTC group/resource setup for Exchange 200X clusters

It, looks like MS are about to change the best practise for the MSDTC resource on Exchange 2000 or 2003 clusters.

Exchange requires MSDTC for workflow apps, however, it is rarely used. Therefore it is really only called upon during install and service pack updates so certain components can be updated etc.

Up until now the recommendation has been to give the MSDTC resource a group (IP, Disk, Name) of its own.

MS now realise that as Exchange setup's use this so rarely in most cases, it is fine to put it in the main cluster group.

See the following link for more:
http://blogs.technet.com/exchange/search.aspx?q=MSDTC&p=1