Oh, if there was a nice small, completely silent and powerful front-end box with an attractive and usable UI for MythTV, I'd probably stop using SageTV tomorrow.

Has anything been done on this front yet? Tegra2 is the new talk of the chipset town when it comes to HD 1080p decoding and output.

I'd even consider building a box myself so long as it's not going to cost as much as a dedicated PC, nor look like one. From what I know, there's absolutely no traction on supporting SoC solutions for MythTV and I haven't heard of any generic hardware available for self-build that rivals the specs nor compactness of the Boxee box from dLink (Tegra2)

This link mentions only SD-capable front ends: http://www.mythtv.org/wiki/Choosing_Frontend_Hardware

And the conclusion is that all the solutions they discuss pretty much stink.