I just bought an Ipad 3 for doing some art work using ArtRage.
I have the latest Artrage 1.4 software installed on my device.
After using the application, I have noticed right away some lag when using brushes. The application is not as responsive as it should be. When you draw a stroke, the rendering doesn't happen in realtime. I seriously think that the software performance should be improved, I'm using IPad 3 and it is very supprising that with the new hardware and increase CPU speed, ArtRage is still suffering from some lag.
I have tried StrechBook and it worked beautifully.
To be sincere, this lag issue is the number one reason why this product is not maximizing its adoption on IPad. This should be the number priority for all your developpers at this moment, before adding any new feature, please first ensure that the software is usable!!!!!
I'm a big fan of the PC version and I have bought two versions of the software that I use everyday. This is a very good tool, great innovation and amazing future ahead. But, you guys needs to put a great deal of efforts to make the tool realtime responsive on the IPad as well. I'm a graphics software developper and I guarrantee you, this device is extremenly powerfull, specially the IPad 3, the problem is in the software.