TMG vs UAG Confusion
Posted by Mike Howells on July 7, 2010
Are you confused about the functional differences between TMG (Threat Management Gateway) and UAG (Unified Access Gateway)? You’re not alone.
Thomas Schinder (MSFT) sums it up nicely by mentioning that UAG is designed to be an Enterprise solution for remote access into internal corporate resources without supplying any outbound access.
TMG is designed for both inbound and outbound access but at a more comfortable price point for SMB’s.
Here is a good TechNet thread where numerous Microsoft’ees chime in with their opinion:
Mike Howells's Blog 
NIKE AIR MAX 1 said
It’s a shame you don’t have a donate button! I’d without a doubt donate to this fantastic blog! I suppose for now i’ll settle for book-marking and adding your RSS feed to my Google account.
I look forward to brand new updates and will share this blog with my Facebook group.
Talk soon!