I have to second your vote for resizable widgets lacking in Launcher Pro. I installed it last night and was blown away with how incredibly fast it is and how it brings some of the HTC Sense UI to my droid X. I love the pinch to zoom to see all 7 screens to switch screens. And the visual effects of the app drawer fly in were really cool.
But, I have to have my resizable widgets. So I unistalled it.
I will definitely be keeping an eye on the progress of this app.
As with the HTC stuff the MOTO will not be able to work with launchers. It has to do with that stuff being heavily integrated into the Core OS. Launcherpro is working on creating his own clone of some those widgets. Like contact scrolling book mark widget and some other ones.