No, I am. I was unaware that the android gmail client doesn't do this. I did find this workaround during a google search. I've not tried it and don't know if it will work for you but here it is...
Unable to send a group email via gmail android app on Samsung Captivate - Gmail Help
"Well, I haven't figured it out, either, but here is a work-around: set up a group in gmail from your desktop/laptop, with yourself included in the group. Send an email to the group, again from the desktop. "Star" that message on your phone (to make it easy to find) and then you should be able to use that message and "Reply to all". Just change your subject line, do not include the quoted text, and you're good to go."