The official countdown has begun, and we’re T-minus 24 hours until applications close for Startup Battlefield, Disrupt SF 2017. If you don’t submit your application by Monday, July 17 at 12 pm PT, well then, Houston, we have a problem.

Don’t miss your shot to launch your early-stage startup in San Francisco — the heart of Silicon Valley. Between 15-30 startups will be chosen to vie for the top prize: a $50,000 check and the Disrupt Cup.

They will join the ranks of 648 previous Startup Battlefield contenders who have, to date, raised $6.9 billion in funding — and 95 of those companies have been acquired or gone public. Want to know more? You’ll find the complete details of past Battlefields and their participants on the TechCrunch Battlefield Leaderboard.

Participants get six minutes to pitch and present a live product demonstration in front of an audience of roughly 3,000 people — and the event is streamed live world-wide on TechCrunch.com, Facebook, Twitter and YouTube. Battlefield participants also receive expert pitch coaching and business advice — not to mention lots of media and investor attention.

Startup Battlefield contenders then field questions from a panel of judges consisting of TechCrunch editors and VCs. Past judges have included the likes of Roelof Botha (Sequoia Capital), Karin Klein (Bloomberg Beta), Susan Lyne (BBG Ventures) and Fred Wilson (Union Square Ventures).

Still not convinced to make that final push? Consider this: You don’t have to win Startup Battlefield to win big. Former TechCrunch CEO, Heather Harde, estimates that “more than half of companies that participate in Battlefields typically receive significant rounds of funding with six months.”

Startup Battlefield, Disrupt SF 2017 takes place September 18-20 2017 at Pier 48 in San Francisco.

This is it: The final 24-hour push. Submit your application here before the clock runs out.

As part of Disney’s gaming-focused D23 extravaganza happening this weekend, Lenovo showed off a smartphone-based augmented reality headset they’re using to promote an upcoming Star Wars experience called &ldquo ;Jedi Challenges.”

The AR demo appears to be something that will be showed off publicly at Best Buy stores in the near future, but it isn’t entirely clear whether the hardware being showed off is going to be for sale anywhere. Lenovo and Disney aren’t releasing any details related to the headset or when these experiences will be made available, so we’re left to make a bunch of assumptions.

The AR headset appears to have at least a single pair of cameras for tracking movement or lightsaber controller (maybe both), while also using a smartphone as the display with some reflective lenses so viewers can’t see the images superimposed on their surrounding environment. The teaser video says a “compatible mobile device&rdquo ; is required for the headset.

We know ILMxLAB has been working with Magic Leap on some augmented reality experiences and while it may be a long time before anyone demos Star Wars content with Magic Leap hardware, the studio likely is looking to get some AR content out that actually gets viewed. The Lucasfilm group already created a short demo called Trials of Tatooine for the HTC Vive, which allowed users a few seconds of lightsaber play.

Lenovo is currently working with Microsoft on their program for low-cost “mixed-reality” headsets . The company also is working with Google on smartphone-based augmented reality with their Tango-enabled Phab 2 Pro smartphone.