Looks like Apogee is taking a page from the UAD playbook. The
Apollo interfaces, which roughly match Apogee's line, come with a basic UAD plugin bundle, and sometimes are offered with free extra plugins from the extensive UAD lineup.
Sadly, the inexpensive Apollo Twin is not available for PC yet -- not sure if it ever will be, but at least one of the rackmount interfaces is compatible with FireWire-equipped PCs.
Cheers,
Eddie