What kind of work am I in store for? It's a production site, but it's one that I'm restructuring anyway. I have no desire to lose content and have backed up my database and 2.9.2 files.
Should my theme transfer over? I'm using Hybrid News theme by Justin Tadlock right now.
I assume a major issue will be plugin support. My main worry right now is executing PHP code on Pages and Widgets.
Another major issue, I assume, is how it plays with the database. What will installing 3.0, using the same database, do to my data?
Is there another big issue I have to worry about?