I've been meaning to give an update, but I've never gotten the opportunity. I've had the time, but I have no clue where my USB stick I use for OS installs is. So to that end, I've gone and ordered two 16GB Micro Center sticks and a 64GB one. The plan is still ReactOS first, then Windows 98 SE, then Fedora Core 3, then antiX 22, then Haiku. For now, I should probably load up some open-source games (e.g. Pingus, Quake, TuxRacer, anything with a Haiku port) for some cross-compatible results.
Once ReactOS is set up, if it gets web browsing over Ethernet working, I'll find some way to benchmark web performance. I don't expect it to do YouTube video, but I might as well give it a shot -- I've had a 450MHz MPC7400 with a Rage 128 8MB valiantly give me ~0.333fps before, so it's not out of the question a ~GHz P4 could do it. After all, this is what the Efficeon was designed specifically to do, so it seems fair to give it a score based on what it's actually supposed to be doing, albeit with a Web so bloated and grotesque it's barely recognizable. I'll probably use Jul, Vogons, Neocities, and my own website (Ultra Reality) as they're a bit closer to ~2004 Internet. If anyone has any suggestions on sites to visit, feel free to drop them below. Also, if anyone has a Pentium 4 M or Mobile Pentium 4 laptop with a Mobility Radeon, 256MB of RAM, and a screen resolution of 1024x768, runs through some of the same tests I've done so far would be appreciated, as well, as my main goal here is to really see how much worse the Efficeon really is compared to mobile CPUs it was competing with.