Gmail via Exchange Activesync Help

view story

http://forum.xda-developers.com – I'd like to use my gmail account connected via exchange activesync. I set that up with various email apps and it works nicely. The only problem is that I don't use my gmail address as my known email address. I have an alias that points to gmail. When I email people, I want that alias to show as the email and reply to addresses. When I have everything set up via IMAP/SMTP, I'm able to do that with K9. Unfortunately, when connected via the Activesync way and I send mail, it always shows my gmail address to the recipient. Is there any way/app that would allow me to do what I want? I do ha (HowTos)