Ask HN: What's a software program you WISH existed?

For me it's a decent offline non web based/non browser specific bookmark organizer.

For example, I have thousands of bookmarks, but I'm not interested in backing them on a random website that might go down. Google bookmarks is good but it doesn't let you important all your bookmarks, you have to add them one by one.

I wish there was a program that let you import HTML/JSON files into it from FF, IE, Chrome, Safari, etc then had some good organization features almost exactly like firefox. It should also have the ability to delete duplicate links, organize links, put tags, create folders, etc.

It should also have the ability to sync with iphones so one could back up their iphone bookmarks onto the thing.