Hey, sorry, I jumped the gun! I saw you respond to another post and figured you missed mine since it was on a previous page.

My thoughts:

1. I feel that fullscreen apps take away from the Maemo experience of multitasking if done improperly. When I'm in a fullscreen app with no multitasking button, if I need to switch to another program I need to press the power button, tap 'phone' and then get to the main UI through the phone interface (like in Brain Party). However, if done right, then it's great, like in Maps, where it still retains the time, back and close, so the user isn't "trapped" in your app.

2. I didn't even notice that search options show up in a different list that's a great idea! haha

3. This goes with #2. I agree completely, which also goes back to having a main menu screen like you suggested, which I think is a better way to engage the user and add future options easily, and not tie yourself into "just" scanning barcodes.

I have no experience coding for Maemo, so I design a "dream" interface not knowing if its feasible. But I'd love to help you out where ever I can, just let me know! I do not design icons persay, but I do have a vast collection of free icons that I use in my websites and designs.