Vodafone's "free TXT weekend"

Vodafone here announced last week that SMS text messaging would be free on their cell network on weekends until March next year. I won't be surprised at all if they announce they're cancelling it next week, as this evening their network seems to be heavily overloaded. Ten minutes of typing on the gad-awful cellphone keyboard, and then I get an "SMS is not sent!" error.

It somewhat does demonstrate why TXT messages cost as much as they do (20 cents currently)...