Well, i do agree that it might not be that useful on such a small screen or given the limitations of the hardware (very long rendering time perhaps?), but it is one of the most complete drawing software on the Linux afaik.

Given the stylus and touchscreen, i can see great potential for illustration and drawing, infact, even more than using a wacom on a desktop.

I believe if properly hildonzied and tidied up (a simpler and less cluttered menu maybe?), it will be a very good one-size-fits-all software and i really look forward to that.