Just came across the new code.recommenders incubation project over at eclipse.org and wow does that look cool. Very cool indeed especially if you spend part of your day in Eclipse. Actually the uses for this goes beyond code completion just like Mylyn goes beyond code as well (see Imagine combining this with Notes 8!). Imagine this for email addressing and/or collaboration. Think how analytics technology like this could make "recent contacts" so much better. Imagine how spell check could be improved.