Some additional information in the ufopedia would be useful:
1. Crafts: Add "Fuel Type" to the stats
2. Craft Weapons: Add "Ammo Capacity" to the stats
3. Weapons and especially armors: Add "Weight"
4. Melee Weapons: Add "Accuracy" and "Tu" like it is shown for firearms
Some technical improvements:
5. Add a slider for weapons with more than three ammunition types, so one can see all possible available types.
6. Allow the definition of keyboard shortcuts for "page forward", "page backward" and "ok"
7. When finishing a research project show ALL new ufopedia pages one after another.
and finally a feature from UFO APOCALYPSE I really miss in openXcom:
9. Right mouse click on an item in the inventory screen opens the ufopedia page for this item. Especially when I try some new mods I cannot remember immediately all the new stats. And with this feature this problem would never occur again.
EDIT: some additional suggestions
10. An indicator that an item uses some stat to determine damage, usually strength. (Solarius Scorch)
11. Show 32 bit images unconverted in the ufopedia. Now, images with high color depth can be loaded, but they are automatically converted to the ufopedia palette. Is there any reason for this? I know that keeping the UFO palletes is necessary for geoscape and battlescape, because of the calculation for lighting. But there is no lighting in the ufopedia
.