Hmmm...this seems to not be news. Bonanos, Stanek, et al.'s estimate is 61 km per second per million parsecs.
http://csep10.phys.utk.edu/astr162/lect/cosmology/hubble_constant.html
has it between 50 and 100.
There's an interesting essay by Isaac Asimov -- "The Proton-Reckoner" -- published in 1966 -- Hubble's constant was thought to lie between 75 and 175. Asimov takes the lower limit of 75 and calculates an observable universe of radius equal to 13 billion light years. A value of 50 would indicate an observable universe equal to 20 billion light years.
The COBE mission to study the Cosmic Background Radiation from the Big Bang indicated 15 billion years, now it's down to 13.7 billion years. Perhaps the next time one of you is abducted by aliens you can ask them : are you guys still working on this age-of-the-universe problem too?