Adobe have today released Lightroom 4 to market.
I have just ordered an upgrade copy on-line as I was pleased with the new functionality of the beta version.
The upgrade price (£59.09 inc VAT) is lower than previous versions and the retail price for the full product (£103.88 inc VAT) is also much less than previous versions. Adobe have reduced the price because of market competition from software such as Apple Aperture 3 which is priced at £54.99 for a new licence. A pity there is no competition for Photoshop.
You can read about Lightroom 4 here:
http://www.adobe.com/uk/products/photoshop-lightroom.html
If you decide to purchase I recommend requesting the box be sent to you, there is free shipping till the end of the month. The software download version costs more money and means no physical media to reinstall from, you will however be supporting the Irish Governments attempts to get the country back from the brink of economic collapse (the higher VAT rate Adobe charge for software downloads from Ireland are the reason for downloads costing more than shipping physical product). Its your call.