As powerful a sales tool as the iPad -- or any tablet PC -- is, you will still need a helping hand. Why? Handling these, large flat computers is almost always a two-hands affair. And in selling, we are all mimes. We need both hands. So anything that frees up one's mitts elegantly is worth the bet. I have been impressed with what Leigh Ann and Andrew Green -- the founders of Apple peripheral company Twelve South -- have done with their Compass mobile stand. The elegant foldable tripod pops out three legs to form a simple, yet stable presentation display. Besides being well-designed and durable, it can help turn any space into a presentation space. And it does it all for $40. Dollar for dollar, this is the tablet presentation tool of the moment.