I got this email as well talking about a update to my n900. I'm not sure if they're lagged, or if Nokia has just gotten tired about telling people "this bug was fixed in the update, go get it". So they send the email out so everyone not tech savy who has this phone(but actually shouldn't have this phone) understands to update it.

There's people who just want a flashy phone, but I bet have never even connected the phone to the net..