So these work GREAT and are very easy to footprint (I made my own rather than use theirs).
Yesterday I went to see if they had something suitable for MSP430 BI-WIRE JTAG, and lo and behold! there's an adapter that fits onto the RJ12 end of the MCP ICSP cable, and plugs into the TI programmer. It works both with the old programmers and the newer MSP-FET, except doesn't support the integrated UART. Nice, nice, nice... Also, it has pads for installing the 330R fuse guard resistor onto the adapter instead of the board and I think I'll start omitting that for any MSP430 board that has the TAG-Connect footprint.
And yeah, got a CLIP also...
All around good stuff, highly recommended. Very easy to work with and I assume it's going to be a flawless victory with Bi-Wire MSP430 as well.
Forgot to mention they also threw in a small board with the various footprints on it to use for a reference. Nice.