You could talk about the weather for an hour and I'd be ok with that. More Nicole...more nicole!!!!! Be seriously, like Lee said, what are you passionate about? It's not worth podcasting about if you're not interested in it.
Coffee could run short on interesting conversation. Perhaps a show about geek distractions. Coffee is high on the list of obsessions but anything that is not "tech" but seems to be linked to the tech community interests.
Useful productivity apps and online services for the individual user. In depth discussion about things like Evernote, and Trello showing how they can be integrated into an everyday workflow. If fact, you can call it Tech Everyday.
I vote for some kind of a food show. I miss Munchcast! Your take can be more of a Feed Your Geek, with coffee, tea, chocolate and, where they overlap, perhaps bacon! There's a surprising amount of tech around all three.
+Nicole Lee as I would like to see and you have my vote for a diet, coffee and tea cast. Can I suggest a show about design as a reviewer of many phones I think you have a understanding of what make for a good UI, hardware feed back, and the "Curves" that would be practical in this modern era. design as a concept, not how it went wrong. First episode: how should the Google Q been design?