From the Amazon UK page:
I checked with Kinokuniya but they don't have it yet. Faster, Kino!
What were Roald Dahl's first words? Read his account of going to football matches with Joss Spivvis, the gardener. This new edition of a favourite book contains a wealth of new photos, facts and writings about Roald Dahl and his childhood, together with the original text and illustrations from his much-loved memoir. With lots of little-known details, this is a must-have for all Dahl fans!
I guess we can expect More About Going Solo in the future? And then it won't take long before they start releasing More About Charlie and the Great Glass Elevator or More About The Magic Finger or More About The Vicar of Nibbleswicke or... okay, I'll stop here.