Thank you to everyone who took part in the survey. A summary of the results is given below. Note that only validated entries were included in these results, so e.g. anonymous submissions had to be discarded.
If you would like more information or have any questions then please contact me here.

The results are categorised by (Y)ear of graduation, the number of responses are given in parentheses:
A: Y < 2000 (53) B: 2000 <= Y <= 2007 (40) C: 2007 < Y <= 2010 (33) D: 2010 < Y (40)
Q. Have you found employment (the question is actually "Are you not unemployed"):
A: 53/53 B: 40/40 C: 31/33 D: 40/40
Q. If you're employed (actually employed), are you working in academic research?:
A: 45/51 B: 33/39 C: 19/22 D: n/a
If you're currently employed as a post-doc, are you working for a UK institute?
A: 10/13 B: 20/27 C: 7/20 D: n/a
If you're currently employed as a post-doc, did you apply for a UK post-doc?
A: 12/13 B: 24/27 C: 15/20 D: n/a
If you applied for a UK post-doc and you're currently employed as a post-doc or academic, did you get a job offer?
A: 10/12 B: 17/24 C: 6/15 D: n/a
If you applied for a UK post-doc, did you get a job offer? (Note that this could include people who have only just submitted their thesis, hence the previous question is easier to interpret).
A: 36/39 B: 23/33 C: 6/21 D: n/a
If you're currently employed as an academic, are you working for a UK institute?
A: 18/33 B: 3/7 C: n/a D: n/a
If you're currently employed as an academic, did you apply for a UK job?
A: 28/33 B: 6/7 C: n/a D: n/a
If you applied for a UK job and you're currently employed as an academic, did you get a job offer?
A: 23/28 B: 5/6 C: n/a D: n/a
If you applied for a UK academic job, did you get a job offer?
A: 23/35 B: 5/11 C: 1/2 D: n/a
Opinions (of those who expressed an opinion) - What is the current strength of the following disciplines, relative to the international standard in that field?
Particle: Very good
Nuclear: Average
Astronomy: Very good
How do you feel the current funding situation will affect the strength of the following fields, relative to the international standard in that field?
Particle: Moderate to Severe negative effect
Nuclear: Moderate to Severe negative effect
Astronomy: Moderate to Severe negative effect

You may also be interested in this link for more information on the case for funding physics.