Someone’s probably made one already but whatever, I couldn’t find it. So anyway, it’s got all the shortcuts for object mode (in pink) and edit mode (in blue). Anything not written in pink or blue applies to both.
The background colour under the text tells you what modifiers you have to hold down. Ctrl is orange, shift is blue, alt is black.
So, “Triangles to Quads” is in blue on black on the J key, so you go into edit mode and press alt+J. Easy!
The keys are accurate for the current SVN trunk, which may or may not be the same as the official 2.48 release (it won’t be much different, if at all).
Anyway, enjoy! SVG and Inkscape files if you’re interested:
By rehost, I mean someone who had the files before the site went down should upload them to another site. Or you could also contact me and I can host them on my website.