The Kiwi is great -- it's a lot of knife in a small package. Looks great, terrific ergonomics, and the double choil design makes it fit very confidently in your hand. It's got a stouter blade than I think is really necessary in such a small knife -- I'm thinking of sending mine to Krein, too, to make it a better slicer.
It's not a heavy knife, though it is dense. It disappears into a jeans pocket, but is a little heavy in lightweight pants without a watch pocket.
Can't leave out the Kopa, though. FFG, leaf-shaped blade, nice clip, and prettier still. Like the Kiwi, it's a dense little chunk of steel, so the clip helps it ride well. I like that it's a narrower overall package than many Spydercos.