I've only had my 770 for like a day, but so far, i'm not too impressed. It's not that fast, it's actually quite sluggish. All of the apps have crashed on me more than once. Configuring my ISP's IMAP system doens't work at all, it sometimes shows messages, but most of the time just an empty mailbox. And it loses my wifi connection every 2 minutes (apple airport extreme) when opening a lot of webpages (with only the browser open) it warns me for low memory and i've already check, but got the latest os.... if i could, i'd give it back and ask for my cash....