Later today, Microsoft is kicking off its E3 press conference at 10:30am PDT. No, make that 10:25am. The reason: "A special surprise."

Spike TV host Geoff Keighley tweets, "Xbox just moved up its briefing start to 10:25 am tomorrow due to a very special last-minute surprise." Starting five minutes early, huh.

We're thinking that could mean one of two things:

1. Starting five minutes early means there will be a last minute new game announcement or a new trailer. (Though he seems to offer this hint: "For those of you asking, my sources say the opening is musical in nature.")

2. Staring five minutes early means the press conference will actually start on time — 10:30am.

Whichever! We'll be there. With bells on. Be sure to check back for our live blog later this morning.

Geoff Keighley [Twitter]

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