I hear your requests. A while back I blogged about a prototype of OSPi A+ version:
http://rayshobby.net/work-in-progress-opensprinkler-pi-ospi-a-will-finally-close-the-gap/
which is aimed to make OSPi as similar as possible to the fully assembled OpenSprinkler, with buttons, LCD, and everything fits inside the same enclosure. I just never got time to completely finish this product.