I've been a Tablet PC user since the introduction of the TC1000. I got my iPad as a "toy" after getting an iPhone . I love my Surface Pro, although the tablet input panel is not as good as the 1st edition software. For me, using a pen on a tablet seems to be the way to go.
The developers at IQTELL will admit that their product is hard to use in a browser on the iPad. I do love the way I can work with my task lists though in the IQTELL app on my iPad and iPhone. They intend to incorporate email processing within the app, which will be great!
IQTELL on my PC / IQTELL on my Surface Pro / IQTELL on my iPhone / IQTELL on my iPad