Looks like some more folks are getting the carrier-endorsed OS 7740 update. According to reader theWeeBear, he just got the mini update to his Samsung Omnia 7 on "3" there in the UK. Likewise, our Nokia Lumia 800 was also updated to 7740 as you can see above. The odd thing? We don't remember updating it (cue conspiracy music). In addition, our own Rich Edmonds confirms his Lumia 800 just received an update notification when plugged in to Zune.
The 7740 update was detailed a few weeks ago by Microsoft and is considered to be an isolated but important update. In short, it fixes two things: a voicemail notification bug and an Exchange 2003 email error. Not every carrier will be pushing it out, however, meaning a lot of may have to wait to either another bug fix (keyboard, anyone?) or "Tango".
Update: looks like lots of folks in various countries are getting this. Even Rogers in Canada for the Focus v1.3. Thanks, Se1fcr3ation, for the screen cap.
Did you get the update yet? List phone, carrier and country in comments!