Personal Transport?
NaturePhotog asks: "IT clearly isn't "it", at least as far as personal transport goes--price and weight rule that out. I live in the SF Bay Area, and while regional transport such as BART is pretty good, there are a lot of gaps and annoyances in local transport. I'm looking for something like the RAD2GO E10 or Zappy to help fill those gaps. It doesn't need to be fast, but it needs to fold and be light enough to carry on BART, be able to handle some hills, and ideally have a range of about 10-15 miles on a charge. There are hundreds of electric scooters and dozens of sites, so figuring out what would be best is difficult to say the least. Any in the Slashdot crowd have experiences (good or bad) with something like this? Or suggestions for other alternatives?"
These are cool toys, but the 40-60 pound weight means that they're not something you want to carry around.
However, as a longtime cyclist commuter, the 10-15 mile range is easily done on a bicycle. Better for you and the environment than a scooter. Yes, hills suck, but not as much as fighting with cars in traffic.
There are some collapsable bicycles, but I've never found these to be worthy of riding more than 1-2 miles at a stretch.
If your local transit company is forward thinking and has bike racks on the bus, then you're set. (Santa Barbara, I recall, had one bus per hour that dragged a trailer meant for bicycles, and I'd usually see it with 10 bikes on board.)
Buy yourself something theft-proof, like a Schwinn, which is still great quality. My Schwinn mountain bike is my city commuter, outfitted with street slicks, fenders, a rack, and hasn't been touched or mauled once in 12 years. I've ridden it through snow, rain, below-zero weather, and it saved me a bundle and kept my weight down.
Everyone comments that riding a bike in cold weather is cold, but it isn't as cold as you think I frequently had to ride slowly so as to not break a sweat. Your legs are very big muscles, and they generate a lot of heat once you get going. I'd be cold at the start of my 3 mile commute, then I'd be warm after 4 blocks, and perspiring for the last mile.
Snow was no problem with street slicks, but ice is. Fresh, untracked snow is easy to ride in, but once the cars start packing it, your tire wants to follow the random crossing tire tracks, and it gets squirrely.
If you're going to commute, get a good, reflective vest, a strong headlight, two tail lights (and clip a third one on you), and get another headlight for your helmet. Shining that head-mounted light into left-turning drivers, who are looking for a break in traffic and not anything else, are stopped cold by a bright light hitting them in the face.
Finally, always carry a cell phone. It depends upon the area, but some areas have motorists that enjoy scaring cyclists. I've had cars cross four lanes of traffic, coming toward me, just to try to scare me. Or they'll speed up past me, dynamite the brakes, and cut me off in a right-hand turn. Ride defensively, live to be old.
Above all, skip recumbant bicycles. Neato, but when you're sitting down that low, you can't see as well, and that little orange flag on a stick isn't going to protect you from motorists. Quite frankly, it is better to be thrown over the hood of the car that cuts you off, than to be whacked in the chest by the grill because you were riding a recumbant.
Just to add to the previous poster:
Bike Friday bikes are not folding bikes. They are bikes that fold. My roommate of a few years ago had one. He loved it. He was a serious bicyclist and would do 150+ km on a sunday ride on his Bike Friday. Not to mention his trips all over the world. Bike Friday bikes are the best for the international traveller. The bike folds down to fit into one suitcase which becomes a bike trailer.
This dosen't help the SF commuter though. Bike Friday bikes don't exactly fold down to fit in your back pocket, and you can't take bikes on BART.