Maybe its the programmer in me, but really mashups are pretty easy now. Thought since Tom has been talking about some things like CSS, mashups are not far behind.
I went through the list and didn't see (nor remember) that one.
A couple others:
You've done RSS, but what about Yahoo Pipes? It's a bit different, I like it, and may be interesting to listeners.
I like old stuff, I remember when you talked about the emulator and old TI-99/4A stuff, but I do like to embrace the new tech as well, have you thought about Talkshoe for interaction with your audience? I think BOL may be overwhelmed with something like that though.
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