Alex
What if the Search dialog allowed users to save (with a name of their choice) the selection criteria they've entered and in future sessions simply select the saved set?
You can already do this. You could go at this a number of ways, but to populate the fields with a value, set the InitialSearchValue on a SearchFieldItem. You could set this on the BrowseDialogOpening event. Conversely, you could save these while within the BrowseDialog by creating a BrowseInformationPanel and then adding a link to "Save" the settings or "Clear" them and then enumerate the SearchFields collection and save them to a database, registry, etc. So you could already do this right now if you chose to.
Paul,
Do you think this request will make it in to SF at some point? I know that you hate to comment on these types of thing's because there could be unforseen issues once you look under the hood, but it would be great to know if you are even considering adding this functionality.
We will definitely consider this...and like you said, until we get in there and start implementing this, there is no way for me to guarantee anything. But I will add this to the list and see if this is soemthing that could be implemented fairly easily. If not, then it may have to wait for a future release.