Thanks for the feedback. Yes, the app is limited at the moment - but don't worry this is just pre-alpha-rc1 :) just one of the several projects to come out of our 24hr office hack-a-thon. Also, the app is open source, check it out here http://github.com/cloudkick/cloudkick-android
Your API credentials are the keys to the kingdom, so you're rightly cautious about giving them out.
However, we can proudly say that with nearly one million servers having passed through Cloudkick without being inadvertently rebooted, terminated, or otherwise... statistically, it's probably more likely that you'll accidentally terminate it yourself manually than that something untoward will happen to it if you're managing it with us. Our entire business is based on making server management better, easier, and safer for you and we do everything we can to make our service infallible.
In fact, some of the initial inspiration for our dashboard was that existing tools made it too easy to accidentally kill the wrong machines. Some providers give nodes names that aren't exactly user-friendly, and without some basic sorting and labeling tools, eventually almost anyone would make a mistake. So, we added coloring, sorting, and renaming to mitigate that kind of user error.
Also, on the subject of security, we just added the ability to require multi-factor authentication to log in to your Cloudkick account. You can choose to require a YubiKey, one-time SMS code, or one-time email code to access your dashboard. We did a brief write-up on our blog if you're interested in learning more: cloudkick.com/blog
Hey there. If you want to jump into #cloudkick on freenode, or jump into our support chat (it's the link down at the bottom-left of your screen) and provide a few more details, we will try to figure out what's happening.
Since you're into monitoring, check out what we're up to - https://github.com/cloudkick/