I don’t know if you were aware of it, but Withings has a forum where scale’s users can exchange their opinion and suggest new features to our team. We just finish to implement several of them. (The forum is available from your account, in the Help Wizard menu).
The second feature is the possibility to choose an athlete mode for the body composition model. As a matter of fact, high-level sportsmen do not have the same body structure as average Joe. Therefore, their body analysis must be adapted. I advised you to select the athlete version if you practice more than 8 hours per week and if you have a resting heart rate below 60 beats a minute.
And last but not least, Linux users now have an installation software on their own. It is compatible with Linux kernel v2.6.26 minimum, CPU x86 32 bits and 64 bits. This pairing wizard has been tested on Ubuntu 8.04 LTS (64 bits), Ubuntu 9.04 (32 bits), Ubuntu 9.10 (64 bits) and Debian Etch (32 bits).