Alas, I haven’t received a response to my bug report yesterday re: scrollview event.phase, which I’ve also mentioned in an aside in email to Walter (he had asked me via email for more detail regarding an unrelated webview bug).
There’s another bug filed around the same time as mine on the same topic, according to the daily build thread. That bug is Case 28111.
I suppose I could regress to an earlier daily build – maybe pre-1260 – but there seems to have been a reasonable amount of surgery performed on the scrollview for build 1260 and I’d rather only have to work on this part of the code once and then leave it alone.