Those are some great ideas. Unfortunately we use Sprint as our cellular phone carrier and are waiting for them to offer iPhones. So currently my phone is not a "smart phone". 
I saw that bikeradar has a new review on the Edge 200. I looked at the 305 also. Thanks a lot. I think between my Cateye Strada (distance, average/max speed, time) and my Polar FT40 HRM, I really just need something to plot my routes (the routes I have traveled to upload when I get home AND to give me route directions when I'm out riding). In reality, if I'm riding a new route I typically map it on google maps, print it out and stick it in my pocket and stop periodically to see where I turn, etc. I think the one I would really want would be the Edge 800 and I can't afford that now.
"Opportunity is missed by most people because it is dressed in overalls & looks like work" - Thomas Edison