Unfortunately I haven't written much open source of late - the only thing, which you can get from my home page, was a Nominet automaton script which I wrote after becoming a Nominet member. Quite a nice perl script I think, but then in typical perl fashion it's only really nice to the person who wrote it.
The most interesting thing that I've done in the past 6 months or so has to be my dnscheck web facility - it allows you to traverse the dns from the root to a given domain, checking the answers at each stage for every branch of the tree. Check it out, you'll like it.
I must release some new versions of my mega drive emulator - I've had one for some time now, which the MacOS port uses, but I've yet to update the linux or DOS versions. Too little time. I must move somewhere closer to where I work - the commute into London is killing me.