Chapter 2: Trends Towards Mobility 25 • Adding new functionality: For instance, wayfi nding with a Bluetooth GPS receiver; • Enhancing interaction: A portable wireless keyboard for text input; digital pen with a Bluetooth connection for note taking and drawing; acceleration sensors (Samsung S310) for sensing the motion and orientation of the device; launching services and accessing phone functions by touching an RFID tag (Nokia Xpress-on RFID Reader Shell); • Enriching media features: larger memory cards for storage; loud- speakers; printing via Bluetooth; module with Bluetooth connection for showing content stored in the device on TV; adapter for con- necting the device to the home stereo; • Facilitating stationary use: For example, car kits for mobile phones enable hands-free use while driving; a car kit for iPod integrates the device to the car audio system; desk stands ease the battery charg- ing and synchronizing; and USB cables can be used for connecting the mobile device to a PC. As the above listed devices (and next week a plethora of new ones) become more widely adopted, the amount of personal data originating from these devices will explode. Personal content management must be summoned to help. So the glorious march of shiny gadgets is closely followed by less glorious but equally important content management methods – the topic of this book. 2.3 Mobile Compromises So far we have discussed the trends towards mobility, and the mobile devices we use. Now it is time to turn our focus to the consequences of mobility. What sacrifi ces, if any, do we need to make while on the move? Is mobile use different from stationary use? How is mobile content different from stationary content? The shortest answer to these questions is probably compromised quality: less pixels, worse sound, shorter documents, cumbersome interaction. Yet, there are methods that can compensate for loss of quality, and in some cases make mobile content more valued than stationary content. Some technical and physical realities cannot be dismissed. Mobile devices simply have to be smaller and lighter than their stationary