This is a fine idea, but we are working on a more comprehensive change which would make this patch obsolete. Basically, though, the same thing will be possible: you will be able to mark a block as "eval" in the admin UI or the database directly, and it will be eval'd.
Cool. I'm setting up a client page Slash-based site, and needed that functionality now, and I didn't know what the status of your efforts were. Any idea as to when you guys will release 1.0.5?
We never did get to doing this, really. Instead, we did an end run and removed the functionality in lieu of Templates, for bender. We won't be making any more changes to the current MAIN branch, except for bug and security fixes.