Google has given us 10 partner codes that TechCrunch readers can use to register for the upcoming Google I/O developer event on May 28-29 in San Francisco.

Tickets are usually $400 each; the first 10 readers who leave a comment saying they want one will get in for free.

Google I/O will be held at the Moscone Center and will cover the following topics: Ajax & JavaScript, APIs and Tools, Social, Mobile, and Maps and Geo. Of course there’s sure to be much buzz OpenSocial, App Engine, and Android, as well as other Google developer projects like Google Web Toolkit and the Google Maps API. Every attendee will get an App Engine account, as well as the chance to see the Flight of the Conchords play at an after party.

We’ll email the registration codes directly to the first 10 commenters, so make sure to use your real email address.