What does a curved arrow next to a direct message mean on Twitter?

[Ninja]

I direct messaged someone using an ipod on Twitter a few days ago and they haven't replied. When i get to the screen showing my list of direct messages, to the left of this message there is a curved arrow pointing to the left. It only shows up when i use my ipod. At the time i sent the message i was having problems with wifi, so does the arrow mean the message hasn't sent and i need to send it again?

[sewrobb]

It just means that the message has been forwarded.

Exacly the same as in an email that has been forwarded on. You get an arrow next to that.

Doesn't mean to say the recipient has received it though!