Tremendous bits of support coming in that I'll be able to talk about once they're confirmed. However, while this is really really welcome, there's been much more response to help with kit than with direct cash support (to cover my overhead back here, some travel costs and contingency for daily subsistence).
I'm putting up an indie-gogo page shortly for small-scale donors but I'm also offering things like post-trip workshops with staff and product or brand evangelism. I've been joking today that I may have four laptops, six phones and a pocketful of dongles, but I may not be able to get over the pond in the first place!
Of course, it then occurred to me that I could do a Capricorn One-style fake journey. Sit at home for a month, tweeting only during US daytime hours and working on putting together fake photos of me at a range of American landmarks – probably spending lots of time explaining to American friends how come I was in town but didn't manage to say hello!
I don't think that's going to be as interesting as actually doing the trip. So if you know anyone who might be interested in supporting at the £250-£1,000 level do point them to me and share the sponsorship opportunities page.