so I downloaded it a couple of hours ago. I was messing around with it and found out that I too could not get sound on videos. also I couldn't some of skyfire's pages to load, like their support forum page. as far as speed comparison, I am a relative noob to ppc mobile web browsing. pie actually seems faster, bit that could be attributed to that pie loads mobile versions and I was going for full versions with SF. plus my connection may be a bit weak in this tin can that I work in.