So as my new years resolution, I've decided to take up running.. and start training to perhaps partake in the London Marathon over the next couple of years as it's always been a dream of mine. I'm currently a stay at home mum, and was wondering if it would be realistic to run with a toddler? He's almost 3 now, and as we're also big fans of cycling I found this which looks pretty promising:

Do you think it's a good idea get something which can combine sports? To me it looks more like a cycling trailer, and I don't want it to be uncomfortable whilst I'm running. Does anyone own anything like this and can recommend it, or does anyone know of anything more suitable?