Currently no; waiting for custom LFH-60 <-> Dual-Link DVI cables.

A pair of these cables will allow one Radeon 6750 to power a T221 at full 3840x2400@48Hz resolution as two 1920x2400@48Hz displays in an Eyefinity configuration if you hack some EDID values. I chose the Radeon 6750 because it's the cheapest AMD card that has two dual-link DVI ports.

I chose AMD because Eyefinity supports framelock on a single card under Windows 7, whereas it seems like nVidia Surround only supports framelock across more than one card (which is inconvenient).

Framelock is necessary because Windows 7 doesn't have built-in support for desktop spanning across the two 1920x2400 displays like XP. (I believe this isn't an issue under Linux either). Without framelock support you'd get display tearing in the middle of the full 3840x2400 display.

It's a pity the nVidia route isn't an option: the AMD Catalyst drivers aren't as good as nVidia's (mouse cursor corruption in 2011? WTF AMD...), and the T221 was originally driven by nVidia cards it seems so the you'd think engineering design is there.