I was recently working on a little Flash Lite (1.0) project targeted at DoCoMo 900/901 handsets and came across something odd with PNG files.
In the project I had a small animation created from an imported sequence of alpha transparent PNG files, which were exported from Swift 3D 4. After importing into Flash, everything looked fine, but I wanted to do some minor touch up work in Photoshop. After completing revisions and updating the library items in Flash, I exported the SWF (flash lite 1.0) and uploaded to our test server. While the animation appeared as expected on a PC, those "slides" I edited in PS displayed on the mobile phones with a black background.
At a loss for what was happening, I started to backtrack to figure out what was different in the edited files. Both were exported as PNG with alpha transparency. The difference was, by default Swift exports 32bit PNG files with alpha transparency, Photoshop only exports up to 24bit. I had not read anywhere in the Flash Lite (for DoCoMo) docs that this was an issue, but, I guess it is.
The fix was to open the PS exported PNG docs in Macromedia Fireworks and export as 32bit. Problem solved!
I'm not sure if this happens on any other devices that support Flash Lite, but hopefully it helps someone out of a bind.
This is especially good information to the Japanese Swift3D community out there I think. I've translated over 3 tutorials that Jim Foley of Erain put together a little while back concerning the advanced modeler. I'm sure anybody that has touched Swift3D v4 and wandered into the advanced modeler that it is pretty tough to get the hang of. With Jim's tutes though, it was a nice window to be able to see what can be done and how it was done.
Just in case, I'll stick the English tutorials link up too (to the blog entry on Erain's site):
Japanese
Swift3D v4でチューブとワイヤーを作る方法
Swift3D v4とFlashを使ってインタラクティブなツアーを作る方法