c) See email from long before I set up this particular blackberry.
tiggit & logicmail fit A and C, but not B. The default blackberry email app fits B but not A, or C.
Budget is $35.
Any idea? There are rare times where it would be really helpful to find something in an email I got in December, and I won't know how important it is that I see it until the future event, so it doesn't get bookmarked or saved in the Blackberry. It will be buried far too much into the pile to be found without a search feature.