I've been waiting on an SX-R4+ that I already ordered for a good while (waiting especially patiently since I already sold a bunch of other gear) and am now told "July 2015." Will believe it when I see it! (In case you're reading this Justin, I'm not directing that at you -- I know I'll get it once the Swiss release it!)
In the meantime, I assume a lot of it will be the same as the SX-R4. What kind of battery life can be expected on the SX-R4 with (a) the internal battery and (b) a Tekkeon? I know the SD 788 and 744 are pretty battery-intensive, but I am hoping that this unit being really light and seemingly pretty small will do better.
I'm also curious how this deck will work with its dual SD cards. I wonder, for example, if they must both be the same size card, if you can run it with just one card, etc.