Gamers Nexus has a good overview of Valve's new Frame headset. Looks like it's primarily aimed at streaming, but it's actually a decent Steam machine itself. It's running a modern Snapdragon ARM processor and has 16GB/8GB RAM/VRAM so it's a bit underpowered compared to consoles or desktop PCs but it's actually a step above the Steam Deck in some aspects. If a game isn't especially hardware-hungry the headset can run ARM or x86 executables on the headset alone.
Of course, being a Steam machine means it can also be used to play a Steam game on a PC, using the headset's hardware to interact with the the game remotely.
And wirelessly! This is where it got my attention. Yes, the Frame and hand controllers are wireless. You don't even have to set up a "lighthouse" setup for tracking. The Frame has dedicated outward-facing cameras and IR illumination to enable inside-out tracking for the headset and controllers. It also has a low-latency 6Ghz link for communication with a PC. For me this wireless aspect combined with the SteamOS's remote play capability could be a game-changer.
No word on pricing yet but the GN piece reports that the desktop unit will be "priced like an entry-level PC, not a console". Nothing special there. It's basically a SFF PC running SteamOS so that's not surprising. It runs at about 200W overall power draw so nothing too crazy going on inside. Maybe around a Ryzen 7600 level of performance using basically overclocked laptop-spec parts with a desktop-spec cooling system to compensate. The main drawback that I noticed is that the CPU and memory seem to be soldered on so it's not upgradable. It does have a full-length M.2 slot and a microSD slot. I see no reason to buy the desktop if you already have a decent PC. OTOH, I see no real reason to avoid it either. It is compact and should fit unobtrusively into an entertainment setup for streaming and playing games if you don't already have something along those lines filling that role. (But I do want to see the price.)
The headset "will not cost more than an index". That's good because an Index and a set of controllers will set you back nearly $2k last I checked. Hopefully the Frame will be quite a bit less than that. If a Frame + a set of controllers is over $1lk then I don't think this will be something that many people will buy. However, if it is less than that then I might very well get one myself.