Over the last few months I've been helping out Vigilus with a new XPages Mobile Web CRM application. ACT! For Notes is a long standing Notes client based application and what we've added in VMobile is a fairly significant subset of the features in the full client application designed to work in iPad, iPhone, Android phone and Blackberry.
Given the size of the application it's taken a while and there have been some challenges, but overall I'd say it's a very capable CRM application that will now work on every device you work with day to day.
Well worth a look if your company is wanting a CRM application.