Sounds like a good idea to me, but I'd like some advice about whether ACID should show alpha versions. If it did, then I think I should make sure there's a prominent warning that the build is ALPHA, but perhaps it would be safer not to show them.
ACID locates the download zips by scanning the html of the download pages for CHDK and CHDK-DE, so it would be helpful if I could know about any changes in syntax before they become live (that way ACID won't suddenly stop working).
On a related point, I keep the ACID tables up-to-date by running a daily program to check if there are new CHDK and CHDK-DE builds - it compares the tables ACID uses with the html on the two download sites. That program too will need modification of the syntax of the html changes significantly.