I looked around the Window PIMs and did not see anything that looked great. Usually they are note oriented, too free-form, or they are overly structured PIMS. A few have tablet and/or web accessibility. They do not really think in terms of an event or call log, like you would have in Act! or GoldMine and those software choices. Those are sales-centric.
So I went into Airtable, so far it is a pleasant surprise. The field data types, linking files, are all reasonably robust and intuitive. I used a tempate for personal CRM and quickly tailored it to my needs. More planned. I think it will become my all-purpose PIM, personal, Bible research, business and more. You've got checkboxes, tags and all sorts of goodies, and a pleasant interface.
Next I will create the "Event" file and link it to the "Contacts" file and see how it looks.
Oh, it has all sorts of connections, to web spots, email and such, where the field can bring up the Google Doc, the Box.net place, the Gmail specific one, and stuff like that.
This is a bit of a new genre, and I was impressed .. so far. Active community forum, too.
On the iPad it will not let you work through the browser, so far the App looks good, although they may not duplicate the geek efforts to make structure, I have not checked that yet.