First off, there is a bug in the newer nVidia drivers (versions newer than 42.23) that was causing Silo to crash a lot for some people. This has been bypassed in the latest version of Silo (1.16c), so stop by over at www.nevercenter.com to download it if you were having issues with crashing.
Also, version 1.2 of Silo is currently in the works, and we'll be posting news about the updates quite frequently on the Silo forums (follow the link from www.nevercenter.com). We're working on things like faster display speeds (tests are showing up to 50% faster with a new quick-draw mode), iso-line display mode, better dialog system (new status bar for one thing), release of the SDK, more tools, true alpha support in the button images, and more, so stay tuned. We're just getting started!