Tony Ruscoe has found many interesting Google services, using an automated tool that fetches URL addresses like https://www.google.com/ accounts/ Login?service= [GoogleService].
What did Tony find?
Google LH2, a service that for the moment redirects to http://lh2.google.com/lh/invitationRequired. That means it's a closed beta. The name might suggest it's Google Lighthouse.
Google RS2, Google SSD, Mobile Download Console - SSD might be Simple Storefront Distribution, RS2 - Remote Storage, while the Mobile Download Console might be a software synchronization tool, like Browser Sync extension.
M Scrapbook - code-named Weaver. Maybe related to Dreamweaver?
That means Google has a lot of products to launch in the months to come.