Update Facebook status without twitter involvement

I know you can update twitter with your checkin and have that sync to your facebook status. However, that really irritates my followers on twitter. A bunch of internet friends follow me because we have similar music/technology/etc interests but they don't live in the same city, so knowing where I am isn't very useful to them. My friends in Seattle who are techsavvy enough to use twitter are techsavvy enough to have figured out what foursquare is and signed up for it. So if I go that route, those people get dual checkin messages. Also, many of my friends still read twitter via sms and have a limited amount of text messages, so I don't want to overload their sms limit, esp. if it's overloading with information they're already getting.

I have many more friends who use facebook than use twitter. Since nobody I know gets facebook status updates inbound via sms, I don't feel guilty about making regular status updates there. A lot of these friends are people who aren't likely to ever sign up for twitter but might eventually be convinced to sign up for foursquare if they were able to see it in action. These are people who have never used dodgeball, loopt, or any similar service and in some cases probably haven't even heard of the concept.

I know there's another topic already about this which suggested doing it as a facebook post vs. a status update... that would definitely be better than nothing, but I'd prefer the status update.

It's too bad that facebook doesn't have a way to sync more than one twitter account. Otherwise I'd just create one for my checkins and have it sync and also have my current twitter account sync. I've suggested it on that end before but the number of people who have multiple twitter accounts is probably not that high.

Anyway, I think updating facebook status would actually be better advertising for foursquare than updating twitter since it hits a much broader userbase.