Overcoming Amazon's 50 MB file transfer limit

I've had a few people email me to tell me that the MOBI version of "Windows 8.1 Book" is bigger than the 50 MB limit that Amazon imposes on its Kindle Personal Documents Service. (It's currently about 75 MB big.) Is there a way around this?

The Kindle Personal Documents Service lets you email documents directly to your Kindle device or compatible reading app.

I'm not aware of a way to get around this, though I suppose there must be ways to compress a MOBI file. But in the meantime, you can simply transfer "Windows 8.1 Book" to your Kindle device from your PC using a USB cable. This is how I get the book on my own Kindle Paperwhite, and it works fine.

If anyone knows of a way to get around the Kindle Personal Documents Service limit, however, please do let me know.

UPDATE: A reader has told me that you can overcome this limitation by using the experimental browser on the Kindle tablet. Just visit the download page with the Kindle browser and click on the MOBI file. You'll be prompted to download it. There is no progress indicator, but once the download completes it will appear on the Kindle's home screen.