Mango
Mild Fruit Character = 3-6 lbs in secondary = 0.6-1.2 lbs/gal = 72-144 g/L
Medium Fruit Character = 8-12 lbs in secondary = 1.6-2.4 lbs/gal = 192-287 g/L
Stronger Fruit Character = 15 lbs or more in secondary = 3 lbs/gal or more = 359 g/L or more
I think further additions to the list by meadmakers experienced with different fruits would be a great resource. Some fruits can be reasonably extrapolated from or between similar fruits already on the chart depending on flavor intensity of the fruit...such as with the previous suggestion that blackberries follow the recommendations for raspberries. If most agree blackberries and raspberries have reasonably comparable flavor intensities just copy the Raspberry suggestions, paste it to the appropriate place on the chart and change the title to Blackberries. We can always insert any general technical information as well, ie:
1) The quality of your mead will depend directly on the quality of the fruit you use. Whenever possible, use the best quality fruit you can get your hands on. Also, in general, a blend of different varietals of a particular fruit will result in a much more complex and satisfying end product. For example, in a cherry mead you may blend different types of cherries to to make the best mead...one type for color, another for flavor intensity, and a third for acidity. Sometimes a small amount of a completely different type of fruit may be used to add depth.
2) Pureed and/or freezing fruit ruptures cell walls and releases flavor into the mead more completely.
3) Covered, open containers are preferred for secondary fruit additions in case the sugars in the fruit restart fermentation. If a carboy must be used make sure there is a couple gallons of headspace to avoid clogged carboy openings and the distinct possibility of a horribly unforgettable (and even dangerous) mead eruption.
4) Cap Management tips
Feel free to modify to your hearts content.
What other fruits should be added?
My suggestions:
Kiwis have always interested me...though I'm not sure how good they would be in a mead. They are always being compared to strawberries in the literature so they could probably use the Strawberry suggestions.
Apricots would a be good addition too, they are often used in place of peaches in craft brewing fruit beers as they give a stronger perception of peach flavor than do peaches themselves. Might be similar effects in mead.
Cranberries since they are mentioned in the intro as intensely flavored fruit.
Huckleberries...are they significantly different from blueberries?
Black Raspberries...are they mellower and less acidic than red raspberries?
Pomegranate
The Tropicals
Bananas...sounds weird but I had a banana lambic that was awesome.
Pineapple
Guava
Papaya
Passionfruit
The Ancient
Dates
Figs
Raisins