The swine flu vaccine has been developed the same way as the seasonal flu vaccine is developed every year. It has also undergone the same amount of testing. As it's effectively the same vaccine every year, but with a different flu strain, it does not need to go through the same amount of clinical trials as a brand new vaccine. A lot of the articles in the media are scaremongering and pretty inaccurate.
I had mine this morning - I'm asthmatic and have had pretty bad flu in the past ending up with me catching pneumonia so I do my best to make sure I'm protected now. I'm still breastfeeding so hopefully Charlotte will get some protection through that. But she will get the vaccination when she's called for it. Little ones are at risk of things like febrile convulsions and one of the key characteristics of swine flu is the sudden onset of a high temperature. I understand that it's a difficult decision for many but for me it's been a no brainer.
I think we've become a bit complacent here because after an initial flurry, things seem to have died down. But IIRC from microbiology lectures at uni, it's usually the second wave where the majority of cases are seen and this is yet to hit. It's expected during the normal flu season which hasn't really hit here yet.