Thus far, there is no office suite that can truthfully claim to be cross-platform.
None.
I have a very simple definition of cross-platform support.
Provide the software for at least fifteen of the following platforms:
* Linux (32 bit);
* Linux (64 bit);
* BSD (32 bit);
* BSD (64 bit);
* Mac OS X;
* Windows 7/Windows Vista/Winsows XP/Windows 2000 (32 bit);
* Windows 7/Windows Vista/Winsows XP/Windows 2000 (64 bit);
* eComStation 2.0 / eComStation 1.0 / OS/2 Warp 4.52
* Solaris/OpenSolaris/Illumos;
* Windows Server 2003/Windows server 2008/Windows Home Server (64 bit);
* Ios (iPhone/iPod/iPad);
* Android (Honeycomb/Gingerbread/Froyo)
* Symbian;
* RIM (Blackberry);
* Windows Mobile 7;
* Windows Mobile 6.5/Windows Mobile 6.0;
* xBox 360;
* Wii;
* Sony Playstation 3;
