i?m testing kainy and splashtop right now.
i feel glad with splashtop xinput implementation. i really love to control directly. In fact, this is the only point that decide to me to discard this alternative, but now i consider again.
take note, as i mention, i don?t have GFX compatible with GPU direct streaming, then i must use splashtop in compatibility mode, than is laggy than with GFX (normal) mode
anyway, i can play smooth, with a bit of lag, but for me is acceptable in some kind of games (Blades of Time is the game i use for testing, because is not so strict with timing input, and i can play "and enjoy" testing and playing in portables devices)
Kainy improves a lot with this last update (i updated yesterday, and today i do some testing). I'm using the "recommended" quality image setting, that is enough good in my opinion (taking in mind i?m testing gamestreaming with a non recommended configuration for this)
trick: for performance, in Splashtop and Kainy, i?m playing in 1024x768 pixels, windowed. The game when launch, take all screen and there is no borders (is a false fullscreen)
i?m doing this with this game, because the option "focus" is not working with this game (Blades of time), but in other games such Batman Arkham City, i play windowed at 800x600 (forcing this resolution) or 1024x768 (with the same "trick" than Blades of Time) and i get better performance with Kainy in "Focus" mode, than splasthop (of course, splashtop running in 1024x768 in false full screen)
i found an issue in the Splashtop implementation. in Blades of Time, DPAD is used to some actions, such show compass, cure, etc. using Splashtop, the DPAD is not working well (I can do the actions related to DPAD), but in Kainy i can do without problem (of course, you must map each control in settings)
i get impressed with the performance of both solutions with G7. Both bring similar image quality (splashtop is better, there is no discussion, but kainy improve a lot from last version), and implementation of gamepads/xinput is ok for me.
Most probably i will write a round two of my gamestreaming article, and put these two apps on the focus again.
(and thanks again for advice to me about splashtop)
i will upload few vids with G5A and G7 devices running some games, if you want to check it later.