If you are interested in using two Sim cards, then instead of going for an expensive dual-SIM card phone handset you could try a cheaper alternative - the Duo SIM D2, the universal dual SIM card adapter. This easy to use SIM card adapter is suitable for almost every GSM and 3G mobile phone with enough space to accommodate the D2 adapter. The sleekly designed adapter does not need any cutting of the SIM card to fit the two cards. The installation process is simple.

First, fix the two SIM cards firmly to the adapter. Next, insert the adapter to your handset and insert the battery and the cover. As soon as the booting process is complete after you switch on the phone, select the dual SIM card icon from the menu. Select the card you want to use. You could change the cards online. This easy to use adapter converts any standard phone to a dual SIM phone within a few minutes.

Via: Red Ferret Journal