Useful welcome messages (idea #92)

When roaming to other countries, the welcome text from my operator tells me how to access my voicemail from abroad, which is useful. However, this is a golden opportunity to grab my attention and offer me services. For example, why not push me a link to an online information service about the country I'm visiting - exchange rates, weather, important numbers, sight-seeing, local customs (e.g. tipping rates) etc? Surely someone must already be doing this.

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