BlackShirt
/rant
The thing Google should focus on, is promoting good apps, they're are currently doing some promoting (e.g. staff picks, top developer), but a developer's choice when it comes to this type of promoting is limited to hope. What they need is something like the Apple's approval system, but not to the extreme of "the app is either approved or denied". The developer can pay a fee to get his app reviewed (UX, performance, ...etc) and when "approved", it gets a symbol (check mark, star, whatever) and put on a category of "promoted" apps. This will probably encourage more developers to put more effort, and more users to trust more the quality of promoted apps.
One thing they can do is promote good apps, not the way they're currently doing it (e.g. Staff picks, Top developer), but with something like the Apple's approval system, but not to the extreme of "the app is either approved or denied". I was thinking more like the dev can pay a fee to get his app reviewed (UI, performance, ...etc) and when "approved", it gets a symbol (check mark, star, whatever) and put on a category of "approved" apps. This will probably encourage more devs to work more on their apps to get them promoted.
I never managed to get my wife to regularly check our shared Google calendar, too much apps to check for her. A simple app which handles all the couple tasks in one place is a great solution.