Hmm.. I think as my initial worry was keeping the white Vu+ remote clean, I'll either:
A. Settle for the Harmony 515, £20 isn't a lot to waste if I don't like it, and I could probably have it in my hands after lunch.
B. Wait till balck Vu+ remotes are available to buy.
C. Just keep washing my hands every 5 minutes and spend the money saved on feeding the kids
I'll think about it.