Cnet's Crave blog reports that Logitech has rolled out yet another member of its low-end 500 series of Harmony universal remotes, the 510. According to Cnet, the 510, which retails for $99.99 but is widely available for less, is similar in its control design to the 550 ($129.99 MSRP), but only controls five devices, versus 15 for the 550.

Commenters at the Engadget blog have already spotted the 510 "in the wild" and have noted that the older 550 is less expensive at some stores and has a blue backlight (preferred by some to the 510's green backlight). Many users are noting that the Xbox 360-compatible Logitech Harmony remote is also a better deal than the 510, as it supports up to 12 devices (and you don't need to have an Xbox 360 to use it).Logitech's official web page for the Harmony 510 is here, and you can find all of the US-market models listed here.

Fans of under $100 universal remotes, time to speak up. Is newer better, or are you hunting for the 550 while you can still get it? Join us after the jump for your chance to chime in.