UPDATE: I’ve posted a hands on review of the Garmin Oregon 450
Garmin just couldn’t wait until the Consumer Electronics Show to start releasing new models. In a blog post this morning, they announced the touchscreen Oregon 450 and 450t handhelds. The only significant difference between them is that the 450t adds preloaded 1:100,000 scale topo maps for the entire US, rather than just the basemap found on the 450. These new units add a tri-axial compass to the feature set found on the Oregon 400t, so you don’t have to hold it level while navigating the wilds. The 450 series lacks the geotagging digital camera found in the 550 and 550t. At this point, those appear to be the major differentiators. The 450 series includes the recent firmware improvements that brought custom map capabilities to other Oregon models. I’ll update this post with product links once those are available. DONE! Thanks to @doc_nl:
Ruh roh! SPOT LLC has announced a 
UPDATE: This model has been discontinued. For a list of current TomTom models and their features, please see our 
is one of TomTom’s first 5” models. It comes with preloaded maps of the US, Canada and Mexico, and 7 million points of interest.
is an entry level 4.3” wide-screen device in the TomTom line up. It includes preloaded maps of the entire United States.
is one of the second-generation models in the nuvi 2×5 series, which I dubbed the “
updates the 
is a lower-level model in a line of Garmin GPS navigators introduced in 2009 (here is a list of 
is essentially the 
is a smaller version of Garmin’s successful 