In the upcoming month or so, expect to see updates to a number of existing emulators - Fuse and fMSX are likely to be some of those updated. Updates are likely to range from very small fixes, to new (and hopefully interesting) features.
If you also own a GP2X, good news — I’ve been contacted by the author of the GP2X port of RACE!, who plans to use RACE! PSP’s state saving code his port. Speaking of which, all signs indicate that state saving works without a hitch — if you’re interested in details, here’s a list of tested games.