Thanks!
Yeah, TBH the wall-slide/grip "feature" was one of those happy accidents where by not fixing it immediately, I noticed it became very useful.
(I guess I should prob also state that in the features list also - doh!)
Thanks also for the neat code suggestion. I preferred the (cardinal sin of) UP=Jump when on keyboard - but noticed much later that this was quite unfriendly to mobile playing!, So I may end up changing this at some point.