I'm with this fellow on that:
http://www.cnet.com/news/woz-the-cloud-is-a-nightmare/
Another reason is that such sites can be down for maintenance, can collapse as they didn't make enough money or were sold.
There are fine drawing apps out there without the issues a cloud adds.
Bob
Whether free or not, designing in the cloud is the best thing ever!
PLEASE SHARE!

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