Was watching some Basecamp how-to videos and came across this excellent comparison of the 590LM vs. 660LM:
https://www.youtube.com/watch?v=PBU65cOk5Gk
I've owned the 660LM for a couple of years. The 590LM looks like a major upgrade, but is priced accordingly. The 660LM can be had for around $325 these days while the 590LM is solid at the MSRP of $900. I'm not enough of a gadget junky to pay that much so I'll muddle through with the 660LM for a couple more years.
This guy also has some very good Basecamp videos.
https://www.youtube.com/watch?v=PBU65cOk5Gk
I've owned the 660LM for a couple of years. The 590LM looks like a major upgrade, but is priced accordingly. The 660LM can be had for around $325 these days while the 590LM is solid at the MSRP of $900. I'm not enough of a gadget junky to pay that much so I'll muddle through with the 660LM for a couple more years.
This guy also has some very good Basecamp videos.