edge 104 (white gba on cover) - has article on history on handhelds, the GT/Express is mentioned in it.
sorry, cant find the bloody edge mag now that had pc engine special one in it, but heres some of the others for interest:
119 - collector series begins, NEO GEO
120 - saturn
121 - nothing
122 - vectrex
123 - snes
125 -c64
126 - nothing
...