[ampersandy]

They'll certainly look; SV-type tech companies are going to screen your application based on technical merit. I'd simply advise not to include your age on your application, because it's irrelevant to how beneficial an internship would be for you and the company. Once you get in for interviews they may be surprised, but any reasonable person would enjoy hearing that you're enthusiastic about improving your skills and doing an internship during the degree.

[dotBen]

Right but the dates of his high school and undergrad programs on his resume will presumably give away that he's not 22.