The WRT610N has a BCM4718 chip - is it supported?
I'd also love to see WRT610N support. How close is the 610N to the (experimentally-supported) WRT320N hardware-wise? In particular, it'd be great to have it be able to run on both 2.4 and 5 GHz.
If anyone can compile firmware from sources, and willing to experiment (knowing how to unbrick your router if the need arises) - you can do so now. The latest code checked into git repository includes full dual-band support for WRT-320N (switchable between 2.4 and 5 GHz in the GUI), and some experimental support for WRT-610N v2. There's no simultaneous dual-band support though - only one radio is supported and can be configured via GUI (but at least you can choose between 2.4 and 5 GHz band).
This code has been tested on WRT-320N, but not on WRT-610N v2 yet. If you build and flash it to your 610Nv2, please report the results here.
WRT320N has only one radio, so no simultaneous dual-band is possible but you can switch between 2.4 and 5GHz band.
WRT610N v2 has 2 radios, each can work on either 2.4 or 5 GHz band but so far you can only configure one radio via Tomato GUI. I plan to add support for second wireless interface at some point (no idea though how soon it might happen).
is there something special about the WRT320N?
Yes - it has a dual-band radio ;)…
Actually, the chip used in RT-N16 also supports dual-band, but the antennas for 5GHz band are simply not there (and - no, it's not a simple hardware modification to add them)…
Yay for 610n support I've been dying to try out Tomato! I don't have a good compiling system set up right now but I'd be willing to try a test version once the bricking risk is a bit lower!