"Near-obsolete" is not the same as "obsolete" - but nice misdirection, anyway.
I would consider X1/1.1 mods obsolete, as I would Enigmahs. These are dead-end chips.
I don't consider flashing the TSOP as a particularly "must-have" feature, because of the risk.
The 256k onboard flash limits Matrix's usefulness in the future. A software hack to load BIOSes from the HD would be great (I've been discussing that possibility for a couple of months now), but it's a hack - a decent one, if they pull it off, but a hack, nonetheless.
The OpenXBox is probably one of the best designed mods out.
The Matrix innovated with Pogopins and an alignment LED. The rest was easily gleaned from the work of others (CheapMod LPC). I couldn't see buying a 256k mod when it came out, and I see less of a reason now (back then it was due to my desire to run the 512k Debug BIOS, now it's more to do with the enhanced BIOSes that will be coming out).
It's near-obsolete. Like the earlier (and obsolete mods), it can get the basic job done, but it is berift of many key features that users will/do want. Want gameshark functionality? Won't happen onboard a Matrix, plain and simple. Want to run Debug BIOS? Won't happen onboard a Matrix. The hack might extend it's life, but there will be issues with HD loaded BIOSes, as well.
Nothing misleading there.