Memory Expansion For Windows Phone 7 Coming Soon

Microsoft Windows Phone team are reportedly buying up every type of memory card they can find. Well it all has to do with a decision to allow memory card expansion on their Windows Phone platform after all.

Initially the memory cards were locked down, but this did not please many consumers who were looking for more storage than the 8 GBor 16 GB that their device came with. In an interview with TechRadar Microsoft said that they were "... now busily buying every microSD card they can get their hands on and testing it in their phones, and when they have a list of which cards perform well enough to recommend they'll be distributing the information."

The testing is required because some cards are slowing down the phones. The OS sometimes requires short sharp access bursts to the memory card in order to work and not every card appreciates this. Hence the tests:  "Yes, its about read write speeds [which is what the SD class number indicates]. The IO rate is part of it but actually what's equally important are the bit error rates. That will impact the speed of the checksum rewrite."