I like JS Paint, because everyone is already familiar with the GUI and it should "just work" on any platform thanks to being a web app.
The problem with JS Paint for me is that it doesn't run in my somewhat old version of Safari; I had to open Chrome/Firefox just to test it. For something to really be universal, it needs to work on every platform, including non-jailbroken old iPhones and Macs with their default browser (yes, I'm making an analogy between Safari and Internet Explorer).
The problem with JS Paint for me is that it doesn't run in my somewhat old version of Safari; I had to open Chrome/Firefox just to test it. For something to really be universal, it needs to work on every platform, including non-jailbroken old iPhones and Macs with their default browser (yes, I'm making an analogy between Safari and Internet Explorer).