On April 23 the NASA Swift satellite detected evidence for the most distant object ever observed. It was indeed a gamma-ray burst. It has a redshift of 8.2, that means it occurred about 200-300 million years after the Big Bang (for reference on the distance scale that places it somewhere roughly between the lines marking the cosmic microwave background and the first stars).
The object seen with Swift ultraviolet/optical (blue, green) and x-ray (orange, red) telescopes. Credit: NASA/Swift/Stefan Immler