Remote shutter release
If you're still looking for a remote, there's a brilliant Android app (if you're using an Android phone) called DSRL Remote by Bitshift which will give you remote shutter release, a separate focus button, HDR programming and interval timer functions. It's free but you need to make a cable. It's far better and cheaper than hardware accessories on the market.
Thank you, now to brush up on my hardware hacking and soldering skills. That looks like an interesting remote.