Wow, everyone has been very busy! Glad to see you have so much that is ready to harvest.
We have a million tomatoes that have set, but only a few mm across at the moment. I'm expecting a glut in a month or so! Loads of female courgette flowers appeared and I went around hand pollinating them on Monday as I am so impatient. No pumpkins yet though, but vines are getting huge. The chillies that weren't munched are flowering. Hungarian Hot Wax which isn't in the polytunnel has loads!
Glad to hear not everyone's cucumbers are fruiting yet
. I gave in and bought some seedlings as both my first and second sowings were munched by slugs. They are galloping away though in really deep buckets of compost and I hope to plant them out in the next week or two. I have learnt though. 7 leaves minimum for my cucurbits or the slugs get 'em.
I really need to do a load of weeding and plant out the second load of sweetcorn and pumpkins I sowed when things were looking bleak a couple of weeks ago, and actually have taken the day of work tomorrow (to co-incide with DH's) and wanted to do it all tomorrow. But it's going to be 33C in London tomorrow and I'm not sure how pleasant/safe that will be on our very exposed allotment. 
Has anyone started fertilising their toms and courgettes etc yet? Keeping up with just watering with a hose in dry, smoggy, windy London has meant I haven't got round to focusing on that yet. Plants have all started to actually look a bit happier than before so I don't want to overload them with uncessary fertiliser.