[Note: I know this thread is old, but I found it via a web search and have an answer for people in the future who find it that way as well.]
There does not appear to be a built-in app, menu item, or button that allows you to view the download queue. On my Kindle Fire HDX, however, I can swipe down from the top, and any in-progress downloads are shown in the ...
Assuming the book(s) have no DRM, this is what I do:
Connect your phone to your computer and move the epub onto your
Import the epub into Calibre.
Connect your Kobo to your computer.
Use Calibre to load the epub onto your Kobo.
There are some ease ways and some that might require programming skills.
I'm describing the easy way:
Install the Send to Kindle extension for Your browser (I'm using Chrome)
Configure it to Your needs
Visit the TED talk that has a transcription, e.g. this one, and click on the transcript link under the video, choose Your language.
Now click on the "Send ...
The documented way is to use the Kindle PC app and download the book inside that. The file will end up on your PC and only readable in the Kindle. The current versions download the book as a .kfx file that allows Kindle apps to do more with the data. Older versions downloaded the file as a .azw file.
The USB option does need Kindle hardware. The hardware ...
Not sure if you are still looking for a solution, but I was in the same situation. I had an Amazon US account and an Amazon IN account. Both of these has a few eBooks. I installed the Kindle for Android app on my phone with one account. And then installed the Parallel Space app via the playstore https://play.google.com/store/apps/details?id=com.lbe.parallel....