As someone who is moving from the UK to HK in 3 months, with no job or visa secured, and attempting to bootstrap my (first) startup; this scares the crap out of me!
Are you moving to HK for a specific reason? As it's one of the world's most expensive places and although things are slowly improving it's not a particularly great place for startups.
Ya, HK is pretty much dominated by financial; no one goes there to work in tech, and there isn't much of a talent pipeline. Singapore, Bangkok, Shenzhen, shanghai, Beijing are better.
Coincidentally, I'm in HK on holiday going back to Beijing tomorrow. I'm suffocating in this small hotel room....my wife did a lot of shopping, though.