LWConnetion is a ligth weight connetion that is used to send a URL request on the network, It's defference from the ASIHTTPReqeust and based on NSURLConnetion more simple and easy. Of cousre It's not as huge as ASIHTTPRequest ,just the simple copacity as below:

1 multi-thread and concurrent. 2 save response and data on the local file. 3 support ARC and NON-ARC.