POSB is migrating passbook account holders to the eSavings account where they will no longer be able to update their passbooks and will receive monthly eStatements instead. Supposedly the deadline to opt out of this is 18 Oct as gmmusikero says, so it is strange that his account has already been converted.
http://www.posb.com.sg/Resources/posb/docs/deposit/faq_sep_2013_pweb.pdf
How did you find this information?
. Once I overheard a guy said "oh ****" no money