Ymess in yahoo messenger chat client for java mobile phone.Ymess could be the stand for yahoo messenger,Y for yahoo,mess for messenger.
contact list,fast data transfer,instant message,Emoticons,and many more.
To install to your cell phone a mobile phone your required: java mobile phone,MIDP 20,CLDC 1,0,enable devices,ymess is freeware software so be happy to download and run it freely.