Sorry for my lack of technical understanding on this topic, but:

If I use an automated PageRank checker that uses the old checksum, can Google see that these are non-toolbar queries? (assuming that there's nothing else unusual, like the frequency of requests)

I'm just not clear on whether Google changed the format of the toolbar request (in which case I presume they could detect me, if all toolbars have auto-updated to the new format, but my checker has not), or have changed the format of the results sent back.

Thanks!