[siddharth]

Wirelessly posted (Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) BlackBerry8700/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/149)

I've not faced such a problem. Then again, I keep charging my phone every day. Even at my workplace I carry a charger and keep it charging. The horror of not having my BB charged is frightening to say the least. But I have not noticed any difference on my side. I use the BB messenger extensively.