I read this question in a previous forum topic:
Can I upload mutiple files as one upload?
And mine just popped in my head:
Can I upload one large file as mutiple uploads?
In fact the main limitation when uploading files is their filesize, so is there a way to split a file in a predefined size before sending it, and the server can later reconstruct the data?
It could be useful also to recover partial file uploads, i.e. The user is going to upload a large movie, so starts the upload (and is split in 100 separate, smaller uploads), then something happens like power going down and the PC is shut down or the browser hangs up, later he tries to upload again and the server recognizes that it's the same file it was uploading and continues in the piece that didn't make it completely, thus saving time and resources 
I've been doing my upload inputs by using an iframe just like gmail does, it's really simple and flexible, and this component you developed is new to me. I had this idea and wanted to know if it's feasible or not, and if it could be implemented using SWFUpload?
Thanks.
LeoZ.
Where is it?
I don't know where to upload things.
Future (Flash 10)
This may be possible with Flash Player 10. The second part (resuming failed uploads) would also be possible but a bit more difficult and would require really specific client side and server side code (which is something we've been trying to avoid as much as possible with SWFUpload).
We are facing other issues with Flash Player 10 however (SWFUpload doesn't work at all in Flash Player 10 due to new security "features") and this kind of work is on hold until we see what we will end up doing going forward.
You are welcome to submit and enhancement request at the project's GoogleCode site so we don't forget that this was requested.