The curiosities themselves are an interesting idea. They would probably belong more as an extra to the reviews part then elsewhere.
Some short stuff on the game, minor gameplay tips, info about the game's world or people who have worked on it's creation.
Small mini-frame that randomly loads one of the existing array referring to that game, but with a "show all" link that pops a new window with all the ones stored.
Example - Space Hulk
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Terminator armor of Deathwing was originally black, but the color was later changed to white in order to honor a group of Deathwing marines who saved their homeworld from a Genestealer infestation.
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Jervis Johnson, one of the people responsible for voice-overs in the game is currently head of Games Workshops' Fanatic division responsible for the companies' non-mainstream game products.
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Dark Angels are one of the few Space Marine Chapters with enough Terminator suits to equip their entire first company.
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On certain levels you can find reloads for your Assault Cannons.
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Items never show on the tactical map.