We'll see who was right soon enough, because GDrive is now moving from "rumor" stage to "somewhat founded rumor" stage. A blogger found out references to something called GDrive in a piece of Google's code.
The code snippet in question looks like this (important parts highlighted by me):
// Localized product category of GDrive
_CI_messages.CI_GDRIVE_CATEGORY = 'Online file backup and storage';
// Localized short description of GDrive (1st
// of 2 description lines)
_CI_messages.CI_GDRIVE_DESCRIPTION_1 = 'GDrive provides reliable storage for all of your files, including photos, music and documents';
// Localized short description of GDrive (2nd
// of 2 description lines)
_CI_messages.CI_GDRIVE_DESCRIPTION_2 = 'GDrive allows you to access your files from anywhere, anytime, and from any device - be it from your desktop, web browser or cellular phone';