The iPhone4 is out in China, and this time it’s on fire. As Fortune writes, the crippled iPhone 3 (no wifi) sold only a few thousand units, while there are pre-orders for 200,000 this time and huge lines.

iPhone4 Line in China

Almost every tech startup I see in the U.S. uses Macs, but in China I only saw one (plus some iPads). When I asked about this, most people answered that Apple products are much better, but that PCs are so much cheaper. They said it with envy. My bet is that, given the pace of change in China, I’m going to see a lot of Macs when I go back in November. Despite crazy prices, the Chinese will pay up for foreign brands. Today’s lines are an amazing leading indicator in what will be the second biggest market for Apple.

I’ve been challenged here by a combination of power supply issues, extremely limited wifi availability, and blocking. My power issues are resolved, thankfully.  There’s wifi in the mall down the street, which lets me receive but not send email. With power back, I have wired access in my hotel room again – phew! But you can’t – without proxies etc – access Facebook or Twitter from China.

All to say, things are great and I hope to catch up with my blogging later today!