Well, the IrDA is fully usable. Wi-Fi is tether on Windows Mobile 6.5 OS and Android OS (I did not test this on Debian Linux yet). The performance is good with only 64MB (this is the current RAM I have, but I will order 2 new Infineon RAM chips for upgrade when I'm going to order the eMMC chip for the Desire HD). The only issue with this device is the internal memory, which is low (128MB, but due to extensive development this problem was solved and now the OS can eat up all the 128MB and the SD card is used for the rest). 32GB SDHC Class10 works well on this device (since the other user had a card like that inside). About the apps... No it won't get any software we normally use nowadays, but with development you can easily make ports of the apps (most of them are found on XDA).