Wait, it's locked down? Say it aint so!
In Europe, you might have some better flexibility, but on Verizon, it's still a closed architecture. Yes, you can get apps from more sources than JUST Verizon's own marketplace, but its still limited to apps and developers who 1) submit through a basic process, 2) comply with Verizon TOS. This is actually a less ideal system than apple's store since the apps are still restrictive in scope, but now there's no review body inspecting the apps to ensure you're not the victim of data theft, abusive practices, and more.
The phone itself feels cheaply made and bulky, the battery life is pathetic, the app availability is still limited, the OS still feels like a beta implementation (I'd have given it a 1.5 version, not 2.0), and the calling plan is $15 more than the AT&T plan without tethering, and more than $30 more with it (whern it eventually becomes available sometime in mid 2010...), and on top of that, it's a CAPPED data plan with REDICULOUS overage fees. If I used Pandora on a Droid like I do on my iPhone, I'd be in for about $60-80 a month in dataplan overages on top of thier more expensive plan and slower 3G netowkr (not to mention, AT&T 3G is awesome in my area, and Verizon is the network that dropps calls and has weak signal in many areas!) ...and between Verizon's support, and dealing with motorolla, no thanks, I'll stick with my dedicated, Apple staffed, AT&T iPhone support thank you... Oh, and the Google GPS... If you're using it, YOU CAN'T TAKE CALLS!!! Verizon does not support concurrent phone and data support on their 3G implementation!!!
On a call and want to look up directions to somewhere? iPhone yes, Droid no.
Want to send a quick SMS while downloading a big PDF? iPhone yes, Droid no.
Listening to Pandora while waiting on an imporant call? Droid won't even tell you you got a voicemail when if failed to ring...
The iPhone is far from perfect, but it's evolving nicely, new features added regulary. Coming this year will be 1) FM reception, enabled simply by a firmware patch/OS upgrade for free, 2) possibly FM transmission (the chipset is capable of it), 3) APIs for iPod plug-ins (to allow Pandora and others background operation), 4) OS 4, almost certainly including a background function for GPS and improved alert functions of other apps. If I can run Pandora, GPS, and a phone call at the same time, then all complaints about backgrounding go away...