Quicklisp is a hobby project. Donations will cover hosting costs, test hardware/software, and related expenses.
I'm afraid your donation does not mean that any specific change, fix, or improvement to Quicklisp will happen faster. It does mean that fewer expenses related to working on Quicklisp (e.g. for domain registration, hosting fees, software licenses, etc) will be paid straight out of my own pocket.
Zach Beane 2011-01-14