EDITing my comment to be more constructive:
There could be money in a cloud- or app-based Personal Assistant, but you would really have to focus razor sharp on your target market. Rich people already have PAs and middle class people's time is not scarce enough to justify paying to get chores scheduled. You'd have to zero in on upper-middle folks like doctors and lawyers who aren't particularly rich, but tend to not have time to manage their lives. I still say it's a small market, but if you hit them and your price is right, it might work.