Cool. So let's compare this to my observations (Not that this serves any particular purpose, but it's fun anyway. We should have a new thread about it.)

• music: sometimes (see below: depends on device size)
• video: a lot. Also, "how do a get this film from DVD to my device?" is the question I hear most from my friends.
• social: no
• notes/reminders: hardly
• skype/IM: yes
• read sent word docs: yes. a lot. also excel.
• news: a little bit.
• games: no
• reading pdf: sometimes, not as important as MS office, but almost
• navigation: probably really gender dependent.
• camera and share pictures: a lot. (ab)using whatever connected device as a means to upload images from their cameras is big thing.
• location awareness stuff: theoretical question - don't know of any location aware applications, so far.
• remote control: no.
• presentation control: no

Other things I noticed, grouped by Jerome's points:

• synchronizing various lists of contacts and digital calendars is something people would want, but don't even try anymore because they all had highly frustrating experiences in the past, including total loss of data.
• mobile e-bay is (unsurprisingly) never mentioned.
• People feel comfortable with all kinds of UI elements they already know. This does include menus. More exotic things frighten them away - this even includes such simple concepts as the grid layout for icons in S60 phones (or the iPhone, for that matter).
• e-mail and sms are still THE major application
• videophoning is something they want to know to work (they all try this with every device that's theoretically capable of it), but never ever use in real life.
• games: not at all.
• coolness and personalisation: irrelevant
• video is more important than music on devices with decent screens. People who want mobile music usually have tiny music players for this purpose even though their larger cell phones (or other gadgets) could serve the same purpose. You dont take your cell phone with you when working out. (Overall, expressed in hours of weekly use, music is more important.)
• reading text: not that I'm aware of any relevant influence here.

Based on people from 25-45, medium to high income, ~ 2/3 male vs. 1/3 female, various ethnical backgrounds, eduction average to above average, non-technical, by and large rather hedonistic and living for the day.