it still does not work for win7 64bit
it turns that the sencha touch SDK, (NOT the SenchaSDKTools) has its OWN COPY of sencha command that behaves completely differently.
If you look in the SDK there is a folder 'sencha-touch-2.0.0-gpl/command' that is a replacement to what's in the SenchaSDKTools ( 'SenchaSDKTools/command' ).
But you need all the rest of the stuff that's in 'SenchaSDKTools'. (confused yet? I know I am)
so there is a magic, ugly, hook that checks if the CURRENT folder has an override of the /command (it looks for a file like '.senchasdk') and then seems to do the right thing.
This is all really messy, and needs a cleanup, or better documentation