Xbox Live Anywhere screenshots have surfaced in the TeamXbox forums where Captain Panic was able to post images of Live Anywhere running on BREW.  The images show the ability to queue up downloads for both your Xbox 360 and PC, messaging people on your friends list, and downloading an arcade game.  Screenshots also show the ability to view your achievement points!  It is not yet known if completing an XBLA game on your phone will result in gaining those achievement points on your Gamertag.
One interesting screenshot shows the ability to buy a pass to all games from a certain publisher on a monthly basis for $3.95.  Could this signal a subscription plan for XBLA too?  I for one would welcome a $3.95 monthly charge for Xbox 360, PC and mobile versions of the same game, especially if this included a subscription to the publisher’s entire library.  We’ll keep you up to date as new info emerges.