Hi Papakilo,
It seems that there are the odd mortgages that I was not aware that have been mentioned in this thread, however banks don't really do sports city as they should. We don't really know why banks don't. The escrow accounts for developers are now mandatory, so this greatly reduces the risk to lenders. This means that the developer can't start on another project with the money made from the sale of a previous project until it is complete. One of the reasons could be that banks in the UAE are generally acknowledged to be slow to change. They have been so in the past. For example, they are slow to cut interest rates (UAE's interest rates are pegged to the US) so the lenders should have slashed their rates ... but they haven't. In reality, its a bit of a controlled market and really needs competition. The mortgage situation frustrates the life out of buyers and investors in and out side of the UAE.
In saying that, the mortgages will eventually come - like they did in other areas. That will increase prices.
In regards to your questions on resales ... there are still quite a few people who flip their properties, as it was always their intentions to do so or because the prices have gone up and they want to cash in. However, resales shows a vibrant market. I always worry when there are very few resales (i.e. Spain). Its one of the reasons, why I'm waiting a bit longer on Abu Dhabi and Ras Al Khaimah - they don't have any resales.
I would say in Dubai, if you can find a great location at a good price in any project, you have nothing to be worried about. This is because of the fundamentals of Dubai's growth (GDP, population, tourism etc..).
As for my background, I was business strategy consultant for big consulting firm in the UK. I started investing in Dubai a while back and have made a lot of contacts as long term investor. I now invest in Dubai and run an investment and sales service only for properties that I have invested in or would like to have done (if I had that much). It's much more enjoyable than my previous job and something that I actually have a passion for !!