Thanks to the people who emailed me about the font ugliness on "Limbo".
To answer the most common question sent to me that was unrelated to my question, the theme that I'm using is called "Default". I'm sure it has another name, but i suspect it was done by Red Hat specifically for the beta/next release.
The fix ended up being as simple as installing the 75 & 100 dpi font packages. Apparently, they're not installed by default. :/ Thanks go out to Seth Vidal for being the one who caught it.
Built glibc 2.2.90 from Limbo on a whim today, worked without incident. Wild stuff.
Starting to think about Linuxworld. I'm going to try to get a lunchbox working (maybe an LX?) and a pizzabox. If anyone has a specific sparc they'd like to see, let me know. And yeah, we'd all like to see an E10K, but the fastest box I have access to is an Ultra 10 (and I don't think that RH wants me shipping it to San Fran). Hmm, I've got an U1, a U2 (smp), a SS20, a couple of SS5s, and a mildly flaky SS2. I don't think I'll ship the SS2, it would probably die in route. Maybe the U2, just to see the many penguins on startup. ;)