Quote: "There is no function InAppPurchaseGetSignature"
It appears in my version, although I don't know if it's value is useful as I haven't used it myself
Quote: "SetWindowSize( 1920, 1080, 1 ) - fullscreen doesn't work on linux"
Fixed for the next version
Quote: "if GetRawKeyPressed(49) then Print("You pressed 1") - numeric keypad doesn't work on linux (num lock on)"
It seems Linux reports NumPad key states using their non-NumPad key values regardless of whether NumLock is on or off. There doesn't appear to be a way to detect the NumLock state manually so I don't think there is much I can do.