To use the SMS gateway (email -> text message) it depends on the cell
phone provider.
AT&T: phone#@txt.att.net
Verizon: phone#@vtext.com
Virgin: phone#@vmobl.com
Alltel: phonenum@message.alltel.com
To send me a text you can email 5152941111@vtext.com or go to http://www.vtext.com
Ipad has been very popular in almost all countries since it was introduced, however it has been criticized by many users for some drawbacks such as lacking built-in cam, phone and etc. Now Samsung has released its new product that may be a real competitor to Ipad. Time will show the winner :)