GO Com superoutburst (first time since 2008 June). Maehara-san's observations detected superhumps. YYYYMMDD(UT) mag observer 20100322.956 <153 (Gary Poyner) 20100326.653 <135 (Yutaka Maeda) 20100327.883 163C (Jeremy Shears) 20100327.956 147V (Roger Pickard) 20100330.641 136C (Hiroyuki Maehara)