technical question about the wallet....
I just opened it and the synching process seems really slow...
It isn't really that slow. Usually you can get to sync up under an hour; however, there is some *block*[1] around which it becomes somewhat slow/stuck for a while. At this point I find it best to exit and open the wallet again.
can we send or receive coin in the wallet if it is not in sync???
You can receive coins during sync just like on any other coin. You can not send coins to others though, as your client doesn't see them until it syncs. There will be major improvements to this in the next wallet update, so stay tuned.
[1] - I still have to do some research in regards to this; currently quite busy.