Just an update:
I have a Mits 73738 (native side by side and checkerboard input - checkerboard output) with X102 glasses.
I received a call from a tech at DirecTV who informed me that they did not include the EDIDs for the 738 and 838 series because they didn't have the VSI as well (auto switching to 3D). They said that the adapter is necessary because the VSI will work with all Mitsu DLPs supported by the adapter and the EDID for the adapter was included in D*s 3D firmware upgrade.
I tried to record the channel and although it did record, it recorded the message that the TV was not 3D capable.
I received a Gefen HDMI detective plus on the 12th and went to Best Buy and recorded the EDID from a Samsung True 3D TV that is listed as being supported by D*.
When I plugged D* into the detective and the detective into the TV, I immediately had access to the 3D channel and have been enjoying the games in 3D. The old recording however was the same as before.
If you have an ATI video card, you can get the iZ3D driver and play PC games in 3D as well.
The Onkyo HT-S5300 is a good A/V receiver 7/1 speaker combo as it supports HDMI 1.4 for less than $450. This will allow you to send all of your 3D devices into it and send them all out to the adapter (for pre 2010 or 2010 models without the frame packing firmware upgrade once it is released) or directly to the TV (for upgraded 2010 models).
Anyway, I hope this helps anyone with a 2010 Mitsu DLP.