I just added this to my MT3 Review:
As for templates, the default RSS 2.0 template is now a ‘non-funky’ version that doesn’t use any extra namespaces and simply uses native elements. It’s pretty much the same as this template provided by Brad Choate except it includes the
<link>element for better backwards compatibility. An RSS 1.0 template is still provided, and neither of the two offer full entries, only excerpts. The Atom 0.3 feed is the only to include full entries.