I think it will have to be a style decision by such as Sparta or Giant, style conscious firms who can sell at high prices. Sparta in particular are probably too well suited by their own superb designs to be interested, and Giant's current policy is to retain design as much in-house as possible now.That's a shame, it looked superb but if people can't put it on their own bikes...rather as with Cytronex, their gear (especially the battery) looks great but when it adds £1K to the cost of the donor bike it puts it out of the range of most.