"SR2 PC only supports 4:3 and 16:10 resolutions. It will auto detect what resolutions your computer can support when loaded and will allow you to select the various options from that pool. There is no 16:9 option available, but there are multiple 16:10 resolutions available.
With regard to an exact ETA on the Steam Digital Download release, that is not available yet, but once I receive a general time frame, I'll let everyone know."
and
"Performance is fine although from what FRAPS is telling me the game is locked at 32 fps and thats with everything maxxed out though i didnt think this game was going to bring my rig to its knees.