To be honest, when you start designing generic icons like Messages/chat, things start to get pretty hazy. But I like how Hipchat is taking this as a chance to create a better icon.
Also to play devil's advocate, the blue is the an evolution of the Hipchat blue, and the stripes an addition from the Messages/iMessages icons on iOS.
Also to play devil's advocate, the blue is the an evolution of the Hipchat blue, and the stripes an addition from the Messages/iMessages icons on iOS.
iChat icon: http://ituh.in/dW6U Android Messages (ICS) http://ituh.in/vBy8