Data connection activity (Rx/Tx) icon?

[stevedusa]

For those whom own a Blackberry, you know that BB's data connection icon has two arrows to indicate the activities or, direction of data activity (Rx or Tx). WM has it too but unlike BB or Android, only the corresponding direction arrow would lit rather than in WM both arrows being lit.

I am just wondering, does anybody made replacement for that? Or any Today plug-ins that will indicate? I am so used to watch the Rx and Tx lights on the layer 1 devices lol.