There's a lot of scope in the sms search section. Advanced search options like searching within a specified date range, listing all msg within a specified date range, search criteria with 'and' & 'or' feature etc.

Oh yes, one very important point. Now after I search and the results are displayed and I click on a msg or conversation and find that it's not the one I am looking for, I press the back button and find that all the search result is gone. Please change this annoying thing as it forces us to do the same search again and again until I find what I am looking for.