From Chikka Philippines:
Chikka Text Messenger for Android lets you send text messages to the Philippines for free and allows Philippine mobile subscribers to reply to you instantly for as low as PHP0. 50/sms. We recommend that you register your Philippine Mobile Number when using Chikka Text Messenger so you may continue to receive Chikka messages on your mobile phone in case you go offline. If you do not have a Philippine Mobile Number, create a non-Mobile account using your email address and enjoy Chikka texting with your friends and family in the Philippines. Note: There is a Phone Book related bug discovered for all Motorola users (Froyo and Gingerbread). If you are using a Motorola handset, please do not download this application until a fix has been applied.