Wow great feedback! There's a real good community here.
Seems like this is fighting pretty heavily with the stock lock screen. Sometimes I have to unlock the phone twice to get into it. Kind of annoying, but not a dealbreaker.
Android doesn't officially support replacement lockscreens. I try to work with it, rather than against it, but maybe that's not so clear or well done. My intention is that if you are at the WidgetLocker Lockscreen you can interact with the widgets there, but if you try to start another activity, by hitting the home button or by hitting a widget like the Twitter widget, then it will still require a slide to unlock to avoid pocket actions. In this case the normal lock screen comes on. I could potentially replace that with an (optional) smaller dialog that explains itself better.
The other issue is that sometimes, especially after hitting the home key, Android is really slow to launch a new activity, so when your screen goes off WidgetLocker tries to start it's lockscreen but it doesn't finish before you turn the screen back on

. I'll play with this more but it's tricky.
Also, any way you could hide the notification bar or at least add an option to deactivate the ability to pull down the notification bar?
This makes sense. I for sure can add an option to hide it. I did some quick looking and I might be able to add an option to keep it visible but not expandable, like the standard lock screen. I'll see what I can do.
any chance of doin a lite version or at least a 30 day trial?
It seems there is a fair amount of interest in a lite version. I'll need to think about this. I really hate expire-ware, so I don't want to do a 30 day trial. But maybe reduced functionally and an ad would be usable enough but still encourage people to upgrade to the full version.
To be able to lock out the controls of widgets (i.e. pandora or music app, as I found it playing in my pocket)
I've thought about this. Any preference on how to unlock them? I've though of (optionally) replacing the mute slider with a widget-unlocker slider. Or long-press anywhere to bring up a dialog and hit okay to unlock.
Have an option to have a screen like the default one but with the option to change colors of the text.
Hrm so perhaps a virtual-widget that looks like the standard clock?
With the above one, maybe some skin support.
As in wallpaper, or the slider as well?
Hmmm...i might just have to buy this. Does any one notice slow down at all?
It shouldn't be too heavy on resources as the actual lockscreen activity exits when you dismiss it, so only the service is running all the time and the service doesn't do much aside from add the optional notification icon, and wait for SCREEN_OFF events. However a poorly written widget might be trying to update too often or something, though you would have this same problem if you put that widget on your home screen.