Here's one I never really thought about: why is the SIM card in GSM handsets a technology that hasn't advanced at all? This is a storage device that's in a very high percentage of phones, yet is optimized (or unoptimized) to store very limited information. And it has a throughput that further limits its potential.
The biggest reason for the lack of advancement is the standardization process. Today, handset makers can design their products and not give any thought to the SIM card slot. Every cars fits into every slot.
Thanks to some advancements by Spansion
, that could be changing. They're pushing the standards bodies to increase both the capacity and the throughput of the cards. Some of the competitors have come up with memory cards that fit alongside the SIM card. But that seems illogical in my eyes. Why not just put in a higher performance SIM card, which is what these two companies are working on. More information of this development can be found at www.mobilehandsetdesignline.com/products/181500670.