Cool, Samurai Spirits Tenkaichi got improved slightly over the original port. Against the PS2 version, the load times are faster (2-3 seconds per match rather than 5-6), the sprites got filtered (thankfully...it looks much better this way, and it's only a slight filtering job), and all the options, characters, and modes are open from the start.
SS1-4 seem to be perfectly emulated, I tried SS5 just for a second and it seemed choppy. Don't really care quite frankly; I'm just going to play SS2, SS4, and Tenka anyway. SS5 Special is NOT in. We'll see if that really does make the U.S. version of this collection.
The Wii version runs in 480p as well. I'm curious about the PS2 version and may go buy a copy to replace my original SS Tenkaichi now.