[Plugin: WP Search] multisite searches?

I’m looking for a plugin to search content from any blog across all blogs on a multisite installation (subdomain)

Does this support it? If so, can I get instructions? If not, will it soon?

Thanks.

http://wordpress.org/extend/plugins/wpsearch/