Yeah, I'm having a similar experience. As a former swype user, it's shame I can't capitalize by swiping up. I haven't had trouble with double letters. Whether or not the 'loop' motion is working or not, it seems to get the word I'm trying to spell most of the time. Which brings me to one issue I am having though: word selection. With swype it knew 100% of the time the words I was trying to type no matter the speed or area my finger was swiping. This keyboard seems to take a (bad) guess after I lift my finger unless I am dead on accurate in covering each individual key. It's especially rough with words like "property."