After 3 years of working with CSV importers for WordPress. We had pretty much done the work to provide extra integration for the most popular SEO plugins.
We then re-developed our CSV 2 POST plugin and have decided to focus on WordPress SEO by Yoast as it seems to be taking over. Obviously we agree that this plugin is the best. Some other plugins do have their pros and with some work things may change but for now we'll make our SEO plugin this one.
Keep up the good work.