Been a while since I've worked with CE3, so here's 2 updates:
First I'd like to address the status of Mat1lda. It is released, and in open beta(I completely forgot to update the blog!). All source is included as well!
Forum topic and downloads can be found here:
Second: I had a HELL of a time getting attachment support for CE3's SDK, but I figured it out and spit out a tutorial for it!
Forum topic can be found here:
http://ce3.googlecode.com/files/CE3%20A ... torial.zip