Just wanted to share my experience with an sdcard upgrade. The stock card that comes with the Droid is a SanDisk class 2 16GB Micro SD. Class 2 is the slowest speed rating. This low speed rating was causing my phone to lag at boot-up (during the "Preparing SDCard" process) for 30-40 seconds during which, I couldn't do anything. From Wiki: These are minimum write speeds so on average - you may get more speed on both read and write. Anyways, after purchasing an 8GB Class 6 MicroSD (Transcend), I copied my data (about 6GB worth including Music) to the new 8GB sdcard and loaded it into my phone. Now the "Preparing SDCard" process only takes about 10-12 seconds at the most. My widgets load faster and I find moving files around on the card is quicker. Not bad for a $20 investment.