With the vacation period, you may have missed it (like me 
).
Microsoft has published the Service Pack 2 for ForeFront Unified Access Gateway.
You can download it from http://www.microsoft.com/en-us/download/details.aspx?id=30459
As usual, this Service Pack is cumulative and contains updates from the SP1 as well the update 1.
As part of improvements provide with this SP:
- More mobile devices supported, such as Windows Phone 7.5 or iOS 5.x and Android 4.x
- Improved ADFS 2.0 support
More details about improvements or fixes http://support.microsoft.com/kb/2710791
It is important to note also that there is NO application publication wizard to support Exchange 2013, SharePoint 2013 or Lync 2013 beta right now.