[Zanr Zij]

I am interested in speeding up video too. I use my PC for this, but it'd be nice to have it on my XMBC device too.

It is something that many people want. Even Windows Media player has supported this for ages. Back about 10 years ago I used WM player for it and you had to install a special plugin. Soon after it became a built-in feature.
http://windows.microsoft.com/en-us/windo...=windows-7

VLC does it and nicely with fine tuning abilities. You can choose from 1.1x, 1.2x, 1.3x.... and so on.

I believe the very popular Media Player Classic Home Cinema does it.

iPhones and iPods also have this ability. (At least for podcasts.)

If this feature is offered, please allow fine tuning and go beyond 1.5x.

I use only VLC (as media player on PC only) and never seen 1.1x, 1.2x, 1.3x.... specifically labelled - I see It has

Faster
Faster (fine)
Normal
Slower (fine)
Slower

That's with normal settings, no idea if there are some settings which impact what labels say or what it equivalent to either.

In any case its works rather well for music/video

Press ] for faster by 0.1 step ( from 1.0 ) and [ for slower. Press = to reset playback speed back to 1.0

I love this feature on VLC. I strongly want this on Kodi/XBMC which is the best hardware usage/require to play Full HD movies on my 1st gen ION PC. VLC load too much higher CPU usage.