Unfortunately not. Haven’t had one for few years. But when I still had a daytime job I used Wacom pen-tablets ranging from small ones up to A3-sized monsters during a period of something like 15 years. They had pin-point accuracy and ergonomy which no mouse or trackball can provide. But no, I have no experience on their new touch-aware products.
But now as this topic came up here, I realised I should go and buy myself one in few days. So … hold your breath and wait … I’ll be back.