Fischertechnik Robo Interface

I would be interested in hearing comments and experiences with the
Fischertechnik robo interface (I've included its description below)

I am specifically interested in any information pertaining to
integrating it with Lego mindstorms building elements, and programming
it with a C compiler (I haven't been able to find the "third-party C
compiler" they refer to in the product description).

Any information would be greatly appriciated.

Robo Interface Product Description
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"A quantum leap in the world of computer-controlled fischertechnik
models. The kit includes a 16-bit microcontroller, USB and serial
interfaces, as well as 128kb of flash memory for downloading 2
different programs which are retained even if the power supply is
disconnected.

Four 9V/250mA (max. 1A) motor outputs now with variable speed control,
8 digital inputs, 2 analog inputs for resistances from 0-5kO, 2 analog
inputs for voltages from 0-10V and 2 inputs for digital distance
sensors. One connection each for ROBO I/O Extension expansion module
and ROBO RF Data Link radio interface, as well as an interface to
infrared transmitter from the IR Control Set. Additional 26-pole male
connector strip - to which all inputs and outputs are brought out - for
convenient connection of finished models through a single 26-pole
connector.

Programmable with ROBO Pro graphic software or with C-Compiler (not
included). Additional 9VDC/1A power supply required (e.g. Energy Set)."