I cannot find any official documentation of the release date except
Hinweis 147519 - Wartungsstrategie und Support-Termine für SAP GUI
which states "march/april".
When will the concrete date be announced?
My collegues ask me frequently for the new GUI because they are preparing a test environment with Win7 + Office 2010 and need GUI 7.20 to match the compatibility requirements...
Kind regards, Rudi