I saw this on Nikki's blog, and just had to look for myself.
I went into my local Sainsburys this afternoon and fortunately they still had all four shades! So.... well just had to have them didn't I? £8 for 4 Nails Inc polishes, I did have to have them!
So here we have Savile Row, Jermyn Street, Warwick Avenue and Hampstead Heath.