Ask HN: Please review our white labeled group messaging web app

The company I work for, Ez Texting, is getting ready to release a white label group messaging solution, probably in February 2010. We are currently doing our own deployment of the platform @ www.TellMyCell.com to make sure everything works as intended. The service offers group text messaging/SMS based mobile marketing. Our typical clients, on our existing brand, are small businesses, non profits, and the occasional Fortune 500 corporation. The site, www.TellMyCell.com is not meant to sell people on signing up for a white label solution; rather it is an example deployment...so we're more interested in what you think of the app/site itself. Thanks!