See the full post for some speculation about what the announcement could/should be
A rumor is floating around that on Tuesday, June 9, Google will host a get together in San Francisco to spotlight Google Apps. The company will make some Google Apps announcements and have some corporate customers talk about the product.
Hopefully, the company will do more than brag about the fact that GAPE recently began supporting Office 2007 documents. Given that the spec has been out for three years and some of the applicable code is open source, that recent announcement is one that underwhelms me.