Apart from explaining what GTD is, you might wanna make new screenshots. From the third screenshot on the website, it makes it looks like over 75% of the screen

Apart from explaining what GTD is, you might wanna make new screenshots. From the third screenshot on the website, it makes it looks like over 75% of the screen is about GTD and Getting to Know the app. It looks like some info handout for GTD and your app - maybe make some dummy todo tasks which users can relate to? The disappointing sales is totally your fault. Measure what you did wrong and fix it - before a million other great GTD apps come to Win 8. The GTD apps on every platform are unbelievably powerful and don't make mistakes you're making. I for one, will not let a product handle my life whose creator did not care to spend more than 5 minutes taking app store screenshots.