I noticed the jerky scrolling on WP plus marking as spam is a bit flaky unless you go into the email first (I think I reported this before).
Great to see things are on track, keep up the good work
MailWasher Mobile for IOS (iPhone, iPod touch, iPad), Android devices and Windows Phone 8.
- The Big Cheese
Yes, it's a bit tricky to get right with WP8 and it doesn't help that they don't improve things with the updates. The last developer update was a bit of a step backwards with some of the behaviour as you mentioned, so it's hard to find a solution going forward.