Try not to think of products that already exist. Try to think of what you want the next things to do here.
How would your ideal mobile sfx recording rig work?
Here's my thought:
I think I'd like a series of tiny modular devices that can plug into my existing mics.
Ideally each module would be about the size and shape of the schoeps cut filter that goes on the collette system mics (only with a female xlr on one side and a closed end on the other)
alt text http://schoeps.de/IMG/products/product_pics/cut1_0.gif
This module would house a phantom power unit, preamp, D/A converter, and wireless xmitter. It would also have an integrated pad and hipass. Each module would have integrated rechargeable power supplies that could be supplemented with external battery packs if required. If it were a little longer than the schoeps pad in order to fit all of that I'd still be ok with it. :P
when recording, each module would power and capture the signal, then wirelessly transmit it to a master base station with routable channels and monitoring. From the base station you could remtoely adjust all parameters on each module including on/off, level, hipass, pad, sample rate, bit depth, etc.
the base station would have usb or firewire ports available for HD connections, and could also wirelessly sync with ftp and other cloud based services. of course full recording templates including routing, naming scheme and other things would be included.
with a rig like this you could essentially just leave the modules attached to the mics during transport. you're wireless, so you don't have to worry about hauling tons of cables around. You also don't have to worry about cable handling noise. all of your setup can be done the day before the shoot, so that when the shoot date arrives you just set up your mics, turn on the system and start rolling.
Of course, the major prereq for a system like this is that it would both work and be bulletproof. a buggy or unreliable wireless rig like this would be as much of a nightmare as a rock solid one would be a dream.