[rant mode]
Include as in? Are you aware that right now there are only 3 active developers left in CSSU team (I hope luf will be back soon when he has his RL duties sorted out). Do we have a bug report (besides ppoll/pselect bug) that is fixed by libc2.10? Not that I don't want it to be included, but how do you imagine the process of "inclusion"?
Something like:

Aapo: Hi guys, here I have a .tar.gz for you. Please include it in CSSU. Bye, I have other projects I am more interested in.

(me, merlin1991 and Pali scratching our heads): Oh, wait, but who'll maintain that?

IIRC I stated a couple of times on the libc6 thread that (IMO) Aapo (and everyone else in that regard) is welcome to be a part of CSSU team. But being a part of that team does not mean to throw the source code and patches and to disappear (marmistrz, remember HARM sqlite3?), one needs to work hard, the same way as if this is full-time, payed job. I expect him to be reachable on IRC to discuss. At least this is what I try to do and expect the others to be like that. I see no other way to keep the quality of the code on the same level as of now. (Well, sometimes we fail with the code quality part, but only those who do nothing make no mistakes.)
[/rant mode]

I guess you should ask Aapo for that, as this is his project and it is up to him to decide whether he wants it included in CSSU.