InfoPath Dev

Can IP 2003 be designed as a browser based form, or is this only in IP 2007?  If so, can someone direct me to some knowledge on this topic?  Thanks.

You can't browser-enable a form created in IP03, but you _can_ create a browser-enabled form in IP07 and make it 2003-compatible.  In this case, any user can view it in the browser, but both 2003 and 2007 users can view it in rich client.  IP2003 has no option or ability for making its forms browser-enabled.

Thanks warrtalon for the answer to this.