ThinkFree Premium Edition, a desktop client that provides seemless Microsoft Office style functionality both offline and online launched in closed beta recently, and we have free invites for TechCrunch readers.

The first 50 readers to email techcrunch@thinkfree.com will obtain instructions and access to the beta trial of ThinkFree Premium.

ThinkFree premium edition provides the same features as the online version of Thinkfree, but on the desktop. Features include file sync functionality that keeps online and offline documents up to date, including automatic uploading of documents created in the desktop app to ensure everywhere access; an archiving feature, full screen viewing and high priority tech support.