First name is sylvan, after my Father. I'm 'sylvan' (if I can get it) or 'sylvandb' or 'sdb' on many sites. I'm in the USA.
For me the Rasberry Pi will fill the hole between microcontrollers and a full blown computer in projects I do like solar photovoltaic monitoring and control, home automation, etc. Where it works a full-blown PC is a lot faster and easier to develop on/for and then deploy compared to a microcontroller. For cheapest initial cap-ex on personal projects I've used old PC gear (laptops for power saving, desktops for cheap) but for clients I typically end up using a fairly new desktop for reliability and because newer equipment uses less power to get the same or better performance. It appears the R-Pi will give me the advantages of a full-blown computer at a power and money budget comparable to a microcontroller.
The R-Pi might also have enough capability to replace PCs in home usage as a media center (I cannot tell you how many gadgets I've tried and always gone back to a PC) or small home server.
Been doing electrical then electronics stuff since at least 1971 when I built my first telegraph system, and started doing computer stuff since 1976. I was first paid for writing software about 1982 while still in high school and have developed for a wide variety of platforms since then, but of course mostly Windows. I have formal education in Electronics Engineering Technology and Computer Science and am a licensed amateur radio operator. I tend to do just about everything myself as I've had to correct too many problems caused by supposed professionals in the various fields.
Been running Linux as hobby and for servers since about kernel 0.6 (ca. 1992, before the first distribution) and as my primary desktop for almost 10 years.
I don't do user interface design, database optimization, or detailed electronic or ASIC design. But if you need software/firmware developed, or just want to talk with an expert who has in-depth knowledge about everything that comes between (but not including) user interface and database on the top to the electronic design on the bottom, I'm your man. (And the first hit is free.