Wanted to reopen this question. I recently jailbroke my iPhone so that I could actually turn my lock screen (this is an unfortunate term as I don't actually have a code lock on it -- it's the slide to unlock screen) into something useful.
The app is called LockInfo and has a bunch of themes that you can run on it and a bunch of options. It's fairly non-interactive and simply just gives you a list of your sms, voicemail, phone, calendar, mail, todo, weather, and twitter alerts. It's honestly the single best thing about the phone and something that is indespensible. Here is a screen shot. Remember, it can be themed to look a little nicer, but you get the idea.
I want to get an Android device when my contract is up and I'd really like something like this. I know there's the notification drop down thing, but it seems like I'd need to do two swipes to get that instead of just hitting the screen on button like I do now. Does something like this exist or am I waiting for something like FlyScreen to offer a widget for something like this? Thanks!