In 2005, 42% of the gay community voted for the Labour party (declared votes of those interviewed) whilst 31.1% voted Liberal Democrat with just 19.2% voting Conservative.'
Full results
LAB 37.5%
CON 29.7%
LIB 27.3%
So, that means:
Labour 42.0% -> 37.5% (-4.5% on 2005)
Conservatives 19.2% -> 29.7% (+10.5% on 2005)
Liberal Democrats 31.1% -> 27.3% (-3.8% on 2005)
Others 7.7% -> 5.5% (-2.2% on 2005)
Swing from Lab to Con of 7.5%
Which if applied to the UK as a whole on the 2005 boundaries gives us:
Conservatives 325 seats
Labour 236 seats
Liberal Democrats 55 seats
SNP 5 seats
Plaid Cymru 4 seats
Others 21 seats
Conservative majority of 4
Forecast for Brighton, Pavilion (constituency with the highest percentage of gay voters)
Con 31%
Lab 28%
Green 22%
Lib Dem 16%
UKIP 1%
Others 1%
Con gain from Lab on a swing of 7.5%