I haven't been to Universal Studios or IoA for an age, but I hear they've implemented a new policy that you can't take anything on rides with you (backpacks, cameras, etc), and that you have to put everything in a locker located at the front of the line. This is obviously a safety measure. How would you feel about this at Disney? Do you think it's over zealous? Or would it be helpful?
Well here at Knotts Berry Farm in CA they do the same thing. To me..i cant enjoy the ride as much simply because I worry someone going to steal my stuff. Plus it slows down the dispatch time of the rides, making the lines longer... I prefer eithier cramming my stuff in the little pocket or not bringing anything that cant fit in my pockets...
I hate those %$@*& lockers at Universal. I think the last time we went they only had that policy for the Hulk coaster. It caused mass confusion, people were running around back and forth trying to figure it out, and it was a stoopid waste of time.
I'd be disappointed if Disney did that. I think it's overzealous. And stoopid. $^%$*#.
I think Universal has more "thrill rides" so they have more of a need. I don't think there's anything in WDW that goes upside down. I really don't like them either. It definitely detracts from the fun to be worried about getting your stuff back. Of course it also detracts from the fun to be worried about your stuff flying off into the nether. I guess the best solution is to pack as lightly as possible.
I would really NOT like that at all 
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It drove me absolutely nuts at universal/ioa. i would really not like it at WDW. Even for RNR the little pouch held what i needed just fine. My backpack fit in there. Otherwise, put in on the floor with a strap hooked to your ankle. keep the bag zipped or snapped shut and make sure its behind your feet under your knees. I did the most times we have been on RNR and it works just fine. The loops and corkscrews move fast enough that nothing is going to fall out.
RNRC is the only inversion I can think of at WDW. The Universal/IoA lockers are before you enter the queue. IIRC, you lock them with a pin number that you pick yourself and they are free for an hour. After that there is a fee. I don't know if they stretch the time allowance when the park is busy and queues longer. It could get quite expensive if they don't.
I can only please one person per day. Today isn't your day... tomorrow doesn't look good either.
Tony they do raise the locker times when the line is longer. I noticed that when I was there in the Fall. The first time we went on the Forbidden journey I think we had 30 minutes (the sign post said it was a 20 minute wait) when we went back later in the day it was over an hour wait and the locker was free for 90 minutes I think. I also noticed it at the Men in Black ride, the locker time changed from when we checked them out to when we left. I would think they would have to time their lines at very consistent and frequent pace. I would argue with them if I got charged after the 30 minutes but the line was really 45 minutes long plus ride time. Especcially since the bag i bring with me are very small and only hold my id, CC, cash, and phone. It's really more of a passport holder.
I know they are really particular about what is considered a 'bag'. I went once with just my cell phone, but it was still in my hand so they told me I needed to put it in a locker. I walked over to the lockers, put it in my pocket, and walked right back and into the ride. 
I know they used to say you got one free locker rental a day, based on your finger print. ...Last time I checked, I have 10 fingers, so that was 10 free lockers, since it works with any finger. 
and if anyone is with you, they have another 10 free lockers!
They can be a bit inconsistant too.
Mrs T has a small bag (purse?) that goes over her shoulder and sits very close to the body. She's 'worn' it on loads of rides, but once once was asked to go back to the lockers and remove it to ride MiB despite being allowed to ride MiB with it earlier in the day, she'd ridden The Mummy with it too which is a much more extreme ride than MiB. It's so small it only just holds her sunglasses, park tickets and cash. I stuffed the bag inside my jacket, zipped it up and walked straight past the ride operator who just looked stunned. This was right at the car loading area, operators earlier in the pre-show and queue must have seen it too and said nothing
I guess one advantage of the locker system over on-ride stowage is it speeds up the ride loading and unloading.
I can only please one person per day. Today isn't your day... tomorrow doesn't look good either.