The very nature of a binary file based repository makes indexing and searching an interesting task. I hope cclark's API plug-in works well!
I am not in any way speaking for Alibre. However, I know that intranet repositories, searching, etc. is not an unnoticed request. If I was a betting man I'd say we see the functionality in the latest at v10. But, I'd put my money on a v9 service pack.
There are times when I would've liked to have a search function. But, that is mainly the result of a poorly implemented file structure on my end!
Jim