I'm not saying it can't. I'm saying mine never did until updating to CSSU an K49. To be fair, I updated both around the same time, from Titans last release with PR1.3. I would have an sgx failure, or the dsp would stop responding, or some other such thing would happen that required a reboot. Or, it would just spontaneously reboot after about a week. (Usually while trying to take a picture or play a video.)

I'd be willing to bet that most people runing PR1.X without CSSU have problems achieving more than 7 days of uptime without needing to reboot. Again, being fair, lots of the upstream fixes for drivers are coming from K49. It's just that CSSU kind of "pushes" you to use at least K46, which for most people will fix a lot of stuff. Most people still on PR1.3 are also probably on an older kernel, be that Titan or the stock Nokia kernel.

I can tell you the GUI improvements in CSSU are really nice. I only use landscape mode, so I'm not talking about portrait stuff. The speed, ability to nuke "transitions", the fact that one rouge widget doesn't kill the desktop. And that if the desktop does die (or you kill it), it recovers gracefully, and re-connects to everything in the right way. It also no longer grows in memory size every day, like the old one did.

Just a few perks of having the new stuff. Again, if it's not something you want, I'm good with that. But it's where things are heading. I don't think Nokia is going to push a PR1.4 ever. Even seeing a PR1.3.2 is probably out, even if another major signer goes rouge. Just a matter of time...