nüvi 500 holds quite a bit of promise. Combining four modes covering cycling, boating (optional), driving and walking, this waterproof navigator has nearly every walk of life covered. GPS Magazine recently got to spend some time with the Q3-bound unit, and not surprisingly, it came away very impressed. On the roads, this device performed just as admirably as any other Garmin unit. When traveling off the beaten path, things were just as great. The only real knocks on this were the added bulk / weight and the omission of text-to-speech, but true adventurers aren't apt to care about that when consolidating four GPS devices into one.