If you're in the market for a new mobile provider, then you might want to consider the free trial on offer from Yatango, where you can get 30 days of free mobile, obligation free.
30 days of free mobile usage. image: morguefile
All you need to do is sign up for the free trial from Yatango, and within 3-5 days you'll recieve your sim card. For the 30 days you'll recieve:
600 minutes of calling time
1 GB of data to use as your like.
When the 30 days is up there is no automatic renewal and no ongoing commitment.
Yatango will contact you before the end of the 30 day period to provide you with a tailor made plan based on your usage during the trial, but you are not under any obligation to sign up to this, and if you decide it's not for you, after 30 days you simply need to remove the free SIM card.
You will be charged separately for international SMS and international calls if you decide to make them during this trial period.
No end date has yet been cited for this offer, but it's one that likely won't last forever, so get in now and get calling!