Hit anything with flint and steel, or pour a bucket of lava on it.
In the paid version yes.
By crafting a flint and steel
you cant. there isnt any flint and steel, or lava wont set anything on fire
You have to place it on any block, then tap it.
Same place as the computers vanilla Minecraft.
As of Pocket Edition 0.3.0, cows have been part of Minecraft Pocket Edition. If you have that version or above, then there should be cows.
Yes there is signs in Minecraft Pocket edition
you cant have a minecraft pocket edition username
There aren't any mods for the Pocket Edition
No, they are no enderman in Pocket Edition of Minecraft 0.8.1
there is no such thing as a fire arrow in PE -.- wait until the enchanting tables come out in an update
You Can't get minecraft for free on pocket edition. I think it costs $7.99 for pocket edition, and $29.99 if you want it on the computer.