Crafting signs only gives you 1 sign, but on the PC it gives you 3. This is annoying since it takes so much wood to make 3 (18 planks and 3 sticks), when on the PC you only need to make one set (6 planks and 1 stick).
MCPE-6054
Signs
Resolved
Invalid
0
(Unassigned)
Unconfirmed
Phone - iOS - iPhone 4
block, sign
0.7.0, 0.7.3, 0.7.4, 0.7.5, 0.7.6, 0.8.0, 0.8.1
Retrieved
Please do not assume that the differences in behaviors between the PC, Pocket Edition, XBOX, PS3, or Raspberry Pi editions of Minecraft are bugs.