Another option for pocket surround...

["Scott Fraser" scottbfraser]

<<and unclear if you can use them at the same time, or, in
fact, if it will record four-channel surround (though I certainly
assume so!)...>>

The blurb referred to it as a stereo recorder & the picture shows only  
left & right channel metering, so my thought is probably not likely to  
record other than two channels. I don't get the piggy-backed aspect of  
the "XY" pairs, although I suspect that will become clear when an  
English language version is available, but I notice that what they  
call XY is not really coincident, but rather a "near XY"  
configuration, with obvious acoustic shadowing at the outside of the  
panorama.

Scott Fraser