If you need a mobile version then design a mobile version. It does not make sense to sacrifice what you would normally have in a browser version and it is overkill to expect someone with a mobile connection to wait to download your browser version. Create a mobile and a browser version. Sledger has a good script somewhere to redirect your visitors to the mobile site if they come in with a smart phone. And if you design your site judiciously it will look good and be functional on a tablet.