Ex-Apple exec Miller steps down as Leap Motion president

FORTUNE — Former Apple executive Andy Miller has stepped down as president and chief operating officer of Leap Motion, according to his LinkedIn account and other social media postings. He will continue to serve as as advisor to the San Francisco-based company, which has developed a small motion-control device that allows users to interact with their computers through gestures alone.

Miller is the former founder and CEO of Quattro Wireless, which was acquired by Apple (AAPL) in 2009 for $275 million. He then became Apple’s mobile ad chief, before leaving two years later to become a Silicon Valley-based partner with venture capital firm Highland Capital Partners.

Miller would soon move on to Leap Motion, a company for which Highland had very high hopes. Not only did the VC firm participate in more than $40 million of VC funding — alongside firms like Founders Fund — but it also committed another $25 million for a “fund” that would invest in companies that utilize Leap Motion’s technology.

Since then, however, Leap Motion has hit some serious bumps in the road. The company’s first-year sales came in well short of internal estimates, and late last month the company laid off around 10% of its 120-person workforce. The layoffs were said to include some high-level executives, but it’s unclear if Miller was among them. As of this writing, he remains listed as president and COO on the company’s website.

Miller also is a co-owner of the Sacramento Kings basketball franchise, and in a tweet yesterday wrote the following:

@orbuch all good. Moved to P/T advisory role at Leap. Working w/ start ups/scheming on next project. Lot's of involvement with Sactown Kings

— Andy Miller (@amiller) April 5, 2014