SMS delivery for Twitter-using Vodafone customers was announced late last week, but what happens if you're not paying your hard-earned beans to Vodafone? O2, T-Mobile, Virgin, Orange and 3 Mobile customers, we feel your pain.

There's plenty of ways to send and receive tweets on your mobile, without flinging money at Vodafone for a new SIM card.

Unlimited internet plans are a great way to explore the mobile web for next to nothing, and if you download a Twitter app, updating the micro-blogging service is even easier.

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