I bought the one Mr. Zhukov posted above and it starts the bike just fine, but if the battery on the bike is completely dead the bike will not idle at all once power from the device is disconnected. I had to leave the battery on a regular charger to get the battery back up to being usable, and everything works ok now.
This was my fault because after I killed the battery (by leaving the "parking lights" on overnight) I left the bike sitting for nearly week due to the weather. I think if I had used this device to try and start it the next day while the battery still had "some" power, it would have been ok, because the last time this happened I just jumped it off my car (SUV) the next day and it was ok.
This bike is like my car in that it is always using the battery, even sitting still without the motor running. There is a little LED on the dash that always blinks (just like my car), so leaving a weakened battery sitting for a week will lead it to run down completely.
I think bump starting this particular bike is a no go, since the first thing the bike does when you turn it on is run the fuel pump for a few seconds (before it will even allow the use of the starter).
I don't doubt that most modern bikes are the same way and the only way around it is to get a much older bike, or maybe don't be stupid and leave the "parking lights" on like I have done twice since buying the thing in December - despite my friend who owns the shop where I bought the bike clearly warning me about it.
Anyway, I would like to thank everyone who responded to this thread. This thing I bought will stay charged and go with me from now on - especially on overnight rides.