The Samsung Galaxy Y is a Smartphone that works with 832 MHz processor and with an OS of Android Platform 2.3 Gingerbread and it has a 3.0 QVGA TFT Display with 2MP Camera + Video Recording that supports the following audio files: MP3, OGG, AAC, ACC+, eACC+, WMA, MPEG 4: H.263.
Why unlock your phone?
If you are a traveller, you can just buy local SIM cards in order to save a lot amount of money from International Roaming Fees.
Free from any restrictions to any service provider