There is no such thing as rooting safely and securely. All Google needs to do is update to the most recent kernel and give us su or preferably sudo with the option of multiple user accounts and password protection. This was one of the two reasons I started the project. I really wanted a recent hardened kernel. Android's sandboxing is pretty easy to crack out of, hell if you make an app on your computer and chmod it to run as root you get root on your phone. The most recent kernels have remedied the former issue, but the latter issue has been a feature of unix since the sixties, so is also a feature of linux. Really, if we want a safe way to root, we would need to fork Android and really do some hardcore work on Dalvik and get the kernel up to speed. Also, an init that doesn't let every orphan process live till the end of execution would definitely help out both security and battery life aspects (this is my guess why the Obsidian rom sucks juice like it's going out of style).