[grumblestumble]

I moved to the Bay Area about a year ago and interviewed at more startups than I'd care to count. The time-pressure offer is pretty much SOP in my experience - 48 hours for a response was the usual limit. Personally, I find it tacky and pathetic, and yep, I ended up going with someone who gave me a week to make my decision. It has far less to do with them "wanting to move on to the next thing" than them wanting to prevent you from following through with other interviews you may be in process with.