I'm using Sitemap Generator 7.0 on a couple of sites. Both sites have mobile version in a 'phone/' folder with redirect from the main URL. However, Sitemap Generator only creates a correct Mobile Sitemap for one of the sites - the other's mobile-sitemap contains no URLs. I can set an inclusion mask to 'phone/' or leave that field blank, but that doesn't change anything - one mobile sitemap correctly contains the URL's in the 'phone/' folder, while the other one doesn't.
I read an older forum post regarding this, and you advised creating a separate sitemap for the mobile pages of the site. Is that still the recommendation for this issue?