I haven't seen a lot of user reviews regarding iphone bike accessories like LiveRider and iBike. Information on features and quality would be beneficial. Some things I've found/questions raised while researching: LiveRider is half the price of base model iBike ($100 vs. $200). iBike uses ANT protocol (liverider is proprietary. iBike case seems to offer better protection for phone. Does it mount securely? Do the integrated cadence/speed pickups mount well on most bikes? iBike has external battery. How well do the apps multitask with other apps on the phone? Are the mapping/GPS features effective? The cheapest iBike doesn't include cadence (I need to check what the cost of an a la carte system would be including cadence. Anybody here have experiences they'd like to share? Other systems that they'd recommend. I'm not looking spend much more than $200 for cadence/speed/mapping features including mounting hardware.