I don't find 4 weeks to be a "lot" of vacation time, but I think the hundred million workers or so who have 2 weeks or less every year would disagree that 4 weeks is "standard." On top of that I took 2 weeks of remote work.

That said, if you're an awesome engineer (especially mobile -- Trulia has about a dozen mobile apps to build out), and you want 10 weeks every year, lets talk. I don't hire for the mobile teams so I can't speak for them but I am certain that would at least love to talk to you.