The Minivan from TheVan Keyboards arrived on the mech scene a few years ago, quickly gaining fans thanks to its compact and efficient layout. I use one quite often, especially when traveling. There's a new version of the Minivan available for preorder right now on Kickstarter. It's called the Kumo, and it brings some important changes to the Minivan to make the keyboard more accessible and less expensive.
The Kumo is a 40% keyboard, which means it's tiny compared to most other keyboards you can buy. You get the full set of alphas as well as a subset of modifiers. There's no dedicated number row or arrow keys, though. At first glance, you might even wonder where the Enter key is; it's down at the bottom next to the mini spacebar, which saves a ton of horizontal space. Just four rows tall and 13 columns across, the Kumo is easy to haul around—it may even fit in your pocket.