iphone-elite team had on their wiki a graph woth the status of the 1.1.3 unlock and it said "completed (imminent release)" so soon...very soon...we will have the newest baseband on 3.9 bootloader...

for the newer bootloader just downgrade it using
http://www.appledailytimes.com/2008/...tb-112-iphone/ and you will be just like the old iphones!!!

p.s. unless u have 1.1.3 otb then u have 2 wait for firmware 1.1.4 to be released ;(