Altaman wrote:
Case in point is my wife has problems with her knees and having two wheels up front and the locking ability of the tilt could/should allow her to ride.
I think this might be a case where some of the hype around the MP3 has crossed the line into unrealistic. While there's many incredible things about this bike, the locking suspension is, in my opinion, a bit of a novelty that causes more trouble than it's worth. While you can, indeed, roll up to a stop and lock the suspension, the timing is fairly critical as you have to be going less than (I think) 3mph. A light starts flashing when you're "eligible" to lock, and said light is positioned down a bit on the dashboard. Thus, you have to pay more attention to the dashboard than to the car in front of you while rolling to a stop.
On more than one occasion, I've flicked the lock switch, only to find, moments later, that I had been too early and the lock was not engaged. At that point, I had to get a foot down in a hurry, as the bike had already started tipping over. On one occasion, it got past the point of no return, and the bike came to a rest on the arm of the center stand. Effectively, I had dropped the bike.
As I understand it, the demo bikes floating around the country took a lot of abuse for exactly this reason -- people had read / been told about the locking feature, and thought that this might be a bike suitable for those who couldn't or wouldn't ride a regular scooter. Lots of them tried flicking the switch too soon, and dropped the bike.
I myself have found that I prefer to just put a foot down and be done with it. It's an automatic response and, ironically enough, I'm much less likely to drop the bike that way.
Given that this is also a very heavy bike (compared to the GTS), there's lots of muscling that must be done when moving the bike around (parking, turning around, etcetera). I think that if your wife has problems with her knees, it's going to really show when moving all that weight around.
The place where the locking mechanism is really useful is when parking the bike. Once you come to a stop (and put a foot down) you can flick the switch and pull the emergency brake, and then get off the bike. No man-handling it onto the center stand (which ironically enough is easier on the MP3 than it is on the GTS). It's also handy when you drop your bridge toll money on the ground while waiting in line at the toll booth and need to reach down and pick it up.