They may drop support for PS3 one day, but I doubt it will be any time soon. Until then I'm happy to play on the PS3I build a new rig or somehow Nvidia magically gets another 5FPS boost through driver updates for the game on my laptop (yes I have it on both PC and PS3 versions, got the 1.0 CE a couple years back).
Yes, the PS3 does have certain limitations, mostly (if not all) hardware based, but FFXIV is optimized and tweaked up the wazoo so it can run on the system. Much of the issue is the amount of RAM the PS3 has, 2 unshared sets of RAM (256 for the CPU and 256 for the GPU). This is the main reason they had to give choppy framerates for NPC and other PC models on screen, as well as the lackluster draw distance and low draw count. It keeps the game running at a steady framerate, but it just looks choppier because they limited the frames other models move at. It certainly doesn't hold a candle to the PC version of the game graphically, I mean aside from shadows the lowest possible settings on PC still looks better than the PS3 version (I can run teh game on my laptop at about 20FPS in unpopulated areas at near lowest settings), but it still runs perfectly fine on PS3.
Also, others might have pointed this out but I'm saying it anyway: The whole "move faster than previously imagined!" thing for FFXI is a 25% movement speed increase if I recall. Had absolutely nothing to do with "PS2 limitations" (the hide certain armor parts did have to do with it though, again likely a RAM issue). Case and point: the Super Kupower that gave increased movement speed up to 25% without other movement buffs from skills like flee or chocobo jig, or equipment like the city state aketons or trotters boots. You ran quite slow in FFXI. And XI doesn't look like an N64 game >.> It actually looks great considering it came out in 2001 and is an MMO. It still holds up in my opinion, especially for not having any graphical updates.