Hello Thorsten, I took your app for a spin and I really like it. I'd be happy to test future versions. Here are my comments, you can take them or leave them of course and if you have any followup questions for me just me me know.
- SMB browser and file ops seem to work well, with and without passwords.
- The general UI doesn't look like Android at all, which I am positive is because you are porting it over from the simpler JavaME stack. I also know that you already know this. Let me know if you have any interest in a second contributor to help.
- The double-click is clever but not very discoverable. I am thinking that a dropdown next to each entry with the available ops or some such interaction would be good. Let me think about this one a little more.
- I think the copy target choice between clipboard and "root" is interesting but only if you let the user configure that list. I can't think of any reason I would ever want to copy a file to root of any device, but if I could put my 4 favorite directories in that list, that would be a nice way to save time and clicks.
- The big one - perhaps only once the file is local, you should have a way to launch it such that Android pops up its "which program do you want me to use to launch this" dialog, which would mean that copying pictures or movies over would be dead simple since I could launch them without even leaving the software.
Keep up the good work and like I said, let me know if you are interested in continued QA or a contributor. Thanks.