Even more addictive and pointless but taking little or no time -

http://www.oceangram.com/index2.html

Just wait for a bottle to wash up on your shore (takes up to five minutes so run in the background and check back later) and choose to reply or not. They won't get your reply, probably. Or/and you can send a message too - to no one in particular - who won't reply to you.

i love this game :D:D thank you !

You don't half get some weird messages...

lol, i know! haha i had one saying "fish fish, wish wish , see you daddy and P*** P*** P***"
i was like ahhhhh