It looks like SingTel Mobile has mucked up again. In the late afternoon, I found that my mobile phone had no signal. After rebooting, it seemed to be okay. So perhaps it was my phone. Then my colleague noted that he had no 3G data connection on his SingTel Mobile line. Later in the evening, for much of my trip home, my phone again had no signal at all. When it did, it had no data. Eventually, I got to…